Mapping to protein networks

Question

[khorms]

I have a set of human proteins and I want to map them at protein network in order to know, whether they interact which each other. Which servers are the most useful for this purpose? Thank you!

[microfuge]

String is an important resource for that http://string-db.org/

Answer 1

[ssv.bio]

CPDB, IPA, Visant in addition to string. WGCNA, BIONET, MEGENA, Connectivity map, for detecting functional association if you have expression data.

[GenoMax]

It would be best to include links for programs you are mentioning in the post.

[khorms]

Are there any good publications about comparison of these methods? By the way, it looks like IPA is not a free product, is it?