Talk:Syndicates/@comment-73.35.226.188-20141121031148/@comment-10743657-20141121215656

They're different 'teams' you can support by wearing a fancy logo on your Warframe. Any affinity you get while wearing that fancy logo increases your reputation/standing with that Syndicate (you also get some standing for allied Syndicates and lose some standing with enemy Syndicates). You use that standing to increase your rank within the Syndicate (to access higher level items) and buy special items from them.

This is entierly optional content. Choose your Syndicate wisely though. It's not cheap to get out of negative reputation.