I came across THIS on the Seven Forums site while looking for something the other day and though it would be a useful addition to these forums.
There's a massive list of over 400 freeware items many of which you'll already be familiar with such as Speccy, Process Lasso, Avir, CCleaner, defraggler etc. The list is alphabetical rather than by software type, but that shouldn't stop you from finding something you may have been looking for, or something you never realized you needed.