Bettina, of Nicht-alle-Tage-Buch, writes that a Wiki, the Translator Help Wiki, has been started by the TW_Users mailing list. TW deals with Trados Workbench and other translation memory software (but not with Transit). However, the Wiki seems wider than that, although not much has appeared there yet.
For many readers in Germany, who may be wondering what a Wiki is: it’s a collection of knowledge made by a group of people. There are many Wikis on the Internet. One person starts with an outline page, and words are marked to show that the next person who comes along can add to them by starting a new page. I’ve occasionally thought of starting a Wiki here, but I don’t know how many people would join in.