in function int socket(int domain, int type, int protocol);
I need more information about each domain and type which defined in "/usr/include/bits/socket.h" - > There about 30 different protocol families(PF) and very poor comments for each.

Where i can find information(or documentation) about PF(AF) , and "new" socket types such as SOCK_DCCP , SOCK_SEQPACKET, SOCK_RDM...

Plz help. I need to find full information about each of linux socket types and domains.

Spent a lot of time searching in internet but there only short information :( . (Show me the way to search :/ )
Ps: Sorry for bad English.