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Municipalities open their GIS systems to citizens

Lee Schlesinger

December 30, 2008 2:00:00 PM

Many public administrations already use open source Geographic Information Systems (GIS) to let citizens look at public geographic data trough dedicated Web sites. Others use the same software to partially open the data gathering process: they let citizens directly add geographic information to the official, high-quality GIS databases by drawing or clicking on digital maps.

Interclue and the pitfalls of going proprietary

Lee Schlesinger

December 29, 2008 2:00:00 PM

The Interclue extension is supposed to give you a preview of links in Firefox before you visit them, saving you mouse-clicks and, with a little luck, allowing you to move quickly between multiple links on the same page. Unfortunately, the determination to monetize the add-on and keep its source code closed results in elaborations that make the basic idea less effective, and its constant pleas for donations make Interclue into nagware. As much as the usefulness of the basic utility, Interclue serves as an object lesson of the difficulties that the decision to go proprietary can take.

Displaying maps with OpenLayers

Lee Schlesinger

December 24, 2008 2:00:00 PM

Google Maps gives you a quick and easy way to add maps to your Web site, but when you're using Google's API, your ability to display other data is limited. If you have your own data you want to display, or data from sources other than Google, OpenLayers, an open source JavaScript library, can give you more options.

Three plugins for better online social networking

Lee Schlesinger

December 22, 2008 2:00:00 PM

Managing buddies on a few online social networks isn't too much of a hassle, but throw in your contact list from instant messaging platforms and online apps and services like Flickr, Digg, and Twitter, and you have a contact list that'd rival that of Kevin Bacon. Managing so many people can be a headache, but here are three browser plugins that can help you manage your online presence more efficiently.

The annoyances of proprietary Firefox extensions

Lee Schlesinger

December 19, 2008 7:00:00 PM

As a regular browser of the Firefox Add-ons site, I'm troubled by the apparent proliferation of proprietary extensions in the last year. Maybe I've simply exhausted the free-licensed extensions that interest me, but recently every interesting-looking extension seems to be a proprietary one -- especially in the recommended list. Nothing, of course, in the Mozilla privacy or legal notice prohibits proprietary extensions simply because they are proprietary, but I find them not only contrary to the spirit of free and open source software (FOSS), but, often, annoying attempts to entangle me in some impossible startup.

Three ways to create Web-accessible calendars on your intranet

Lee Schlesinger

December 18, 2008 2:00:00 PM

Let's take a look at three projects that are aimed at showing calendar information through a Web interface: WebCalendar, VCalendar, and CaLogic. These projects run on a LAMP server and provide a Web interface to calendar events.

Barracuda offers a new -- and free -- alternative to Spamhaus

Lee Schlesinger

December 17, 2008 7:00:00 PM

For many years Spamhaus has been top dog in the anti-spam world of DNSBL (Domain Name System Block List; also known as Realtime Blackhole Lists or RBLs). But Spamhaus is no longer a 100% free service. Even small nonprofits are now expected to pay at least $250 per year for a subscription to the Spamhaus DNSBL Datafeed Service. Now a new, free alternative to Spamhaus has arrived: the Barracuda Reputation Block List (BRBL), provided by well-known, open source-based Barracuda Networks. And Barracuda CEO Dean Drako says the company has no plans to charge for the service in the future. He says that BRBL (pronounced "barbell") "does cost us a little bit of money to run, but we think that the goodwill, the reputation and the understanding that Barracuda is providing the service will do us well in the long run."

Four simple but essential WordPress plugins for site administrators

Lee Schlesinger

December 15, 2008 9:00:00 AM

All WordPress site owners have their own list of "must have" plugins. Is one or more of these administration and security add-ons among yours? Each adds valuable functions to WordPress, and is simple to configure and use.

How to sync Evolution with Google's PIM apps

Lee Schlesinger

December 12, 2008 9:00:00 AM

While I'm a die-hard Google user -- especially the PIM apps -- I still appreciate offline applications for the integration with the desktop, speed, and features they sport. The Evolution contact and calendaring application is a great example: it's as feature-packed as Microsoft Outlook, but with GNOME integration, and it's fast. Gmail, by comparison, is slow and lacks any desktop integration. In a perfect world, Evolution would sync with Google's PIM apps. Unfortunately, there aren't any good, easy-to-use, comprehensive guides for setting up Evolution to sync with all of these apps -- until now.

GameLayers gets on track with Ruby on Rails

Lee Schlesinger

December 11, 2008 7:00:00 PM

GameLayers' Passively Multiplayer Online Game (PMOG), which allows users to immerse themselves in a virtual world of adventures, challenges, and intrigue, has been picking up traction thanks in part to its robust open source framework. Underpinning the popular online game is Ruby on Rails, a full-stack framework for developing database-backed Web applications that works with a variety of Web servers and databases.

Recent Firefox extensions for tab addicts

Lee Schlesinger

December 01, 2008 9:00:00 AM

The number of Firefox extensions continues to grow. For example, when I last wrote about tab extensions just over a year ago, about 110 existed. Now, despite the need to rewrite many extensions to make them compatible with Firefox 3.0, the number is over 190, and the choice is greater than ever. Basic functionality, coloring options, positioning of the tab bar, automatic opening of tabs at startup -- whatever your need, you can probably find it on the Firefox add-ons site.

openDesktop.org provides super-portal to free software sites

Lee Schlesinger

November 28, 2008 2:00:00 PM

When users want the latest in free and open source software (FOSS), they are likely to think first of sites like freshmeat, or perhaps Softpedia or GnomeFiles. However, as the FOSS community has divided into specialized communities, sites for new releases have proliferated, to the point where it is difficult to keep track of them all. Since 2007, openDesktop.org has provided a portal for many of these specialized sites. Under the slogan "Let's build the desktop of the future," openDesktop.org provides a quick overview of new software that is independent of desktop or distribution.

Enrich your Joomla! site with image extensions

Lee Schlesinger

November 17, 2008 9:00:00 AM

Several extensions can help you work with photographic images on your Joomla! content management system. Here are some of the best.

Set Mantis to track your bugs

Lee Schlesinger

November 14, 2008 4:00:00 PM

Mantis is that rare bug-tracking program for small projects that is neither too bloated nor too featureless. It's an excellent choice for developers who need a bug tracker that the average computer user can use. Its clean interface and numerous features make bug tracking fast and easy.

Winemaker wears a Joomla! developer hat

Lee Schlesinger

November 10, 2008 7:00:00 PM

Dave Whiting, the principal at Red Newt Cellars winery in upstate New York, was tired of chasing vendors to try to get them to support clunky custom content management systems on his site at RedNewt.com. The independent winemaker decided to branch out and teach himself site development skills, with the help of some popular open source applications. The happy result is a full-featured interactive ecommerce site that Whiting says is flexible, scalable, and secure.

Gollem: A Web-based file manager for back-end data

Lee Schlesinger

November 07, 2008 4:00:00 PM

There are many ways to share files with teams of people, but few require only a Web browser for access and let you choose from tens of different ways of authenticating user access to the files. Such lightweight and universal access is the promise of Gollem, a file manager that runs in your Web browser. With it you can connect to and manage your files on a WebDAV, FTP, or traditional filesystem or SQL database.

Listen to your music anywhere with Subsonic

Lee Schlesinger

November 05, 2008 4:00:00 PM

If your music library is tied to your CD collection or MP3 player, you can still hit the road without losing access to your tunes. Subsonic is a free, Web-based media streamer that lets you -- and your friends -- access your music collection over the Internet.

Dillo 2.0 is fast, but limited

Lee Schlesinger

November 05, 2008 9:00:00 AM

The lightweight Dillo Web browser, in development for eight years, has always been a contender for the fastest browser available on GNU/Linux -- so much so that the Google's Chrome will have to be pretty nimble to outpace it. With last month's release of version 2.0, Dillo is faster than ever. If performance is your main priority, you might find Dillo's minimalistic tools and functional limitations an acceptable tradeoff -- but probably not.

First look: Mozilla's mobile Fennec browser

Lee Schlesinger

October 22, 2008 7:00:00 PM

Mozilla released the first workable alpha version of its new Fennec mobile browser last week, showcasing a new interface optimized for small-screen devices. Despite the slimmed-down look, however, Fennec makes use of the same Mozilla technologies under the hood that are well-known in Firefox. In my testing on my own handheld device, I found Fennec an enticing browser with a well-thought-out interface.

Perspectives extension improves HTTPS security

Lee Schlesinger

October 20, 2008 9:00:00 AM

Ah, cryptographic security: a boon to those who understand the algorithms, but all too often a lost cause to those who don't. The secure HTTPS protocol for Web surfing is widely accepted, but has one fatal flaw: users ignore certificate error warnings. A Firefox extension called Perspectives aims to close that security hole.

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