For a long time now I've been wanting to create a resource where you could put specific performance advice about specific classes in a way that's reasonable easy to find and so that others can contribute. I finally found a home for this on channel9's wikis.
I've started with a dozen or so topics and I encourage you to add to the list according to the conventions there if you're so inclined.
See Classes With Comments on the Wiki for the main index.
Also, it's rather hard to find all the various articles, especially the older ones, that are on this blog and many of them I think have enduring value. So I created a page that will have a complete list with a brief abstract. Feel free to add your comments to the abstracts. I haven't quite added them all yet but I intend to get them all in there, hopefully today even.