yAronet is an excellent addictive forum about Ti and other topics. This forum allow to manage the topics you want to read, and allow to lost no post. The followed topics is presented in a little popup, and I hate it. I found very boring to switch between windows. So I made it a Firefox sidebar, as the bookmarks or the history ones.

Note that this plugin may not work. I didn’t maintained it. And as the forum may did some update, the parsed HTML format may have change and so the plugin may not work anymore.