Vanilla is an open-source, standards-compliant, multi-lingual, fully extensible discussion forum for the web.
In Vanilla you can quickly and easily see which discussions you haven't read, and how many new comments are in each discussion. Through Vanilla, you can run advanced searches through discussion topics, comments, and users. With Vanilla forums, you can change the way Vanilla operates using per-user preferences. Finally, you have a very customizable account profile where you can provide pictures of yourself and add as much information about yourself as you like.