I have a team that is working on a City Builder game. We are finding our current choices in collaboration tools are not very effective. We have CreateAForum.com right now, but when you click to reply, it starts a new page, without the original content to reply to any more, among other issues.
I'm looking for a good set of services (different sites are fine, a combined services would be great) and hoping for recommendations for the following: (free is great, but not required)
Private Forum, easy to use.
Private Wiki, easy to use
Private Image Share/management.
Private File Repository - Presently pretty happy with TFS though, but if it links into the WIKI or Forum, that would be great.
Also considering alternatives to Skype. Since Microsoft took them over, they've dropped their plugin system and some of the features on windows. a replacement for that might be nice too.