Zoho Connect is the secure enterprise social networking platform that brings people and work together in a single place. With applications pulled directly into Zoho Connect, people can instantaneously share information, accomplish more, and work better together.
A blog is an application , where you write what you like to share on an ongoing basis. New posts shows up at the top, so your visitors can read what's new. Then they comment on it .
Forum application is where people can start communication (in the form of threads) and reply to other people's threads. A member of the community in the forum posts a message, which is visible to everyone in that community. Once read, there is the option to post a reply, which can also be visible to the community. Thus, a discussion can build up without all users having to be online at the same time.
Wiki documentation are easily constructed, and include group editing and publishing.