The Rise Of The Question Marks
If you've ever wondered where the "Hot In My Communities" comes from, you are not alone. A significant number of emails come in each month requesting that certain links from there get removed, for whatever reason. It's then that I explain what Hot In My Communities actually is doing in your sidebar.
Hot In My Communities is a list of the most popular links in your communities, *your* being the operative word. So, all you have to do to remove them, is to leave the community responsible for the link. Until now, that has been extremely difficult, especially if you belong to a large number of communities.
However, we've gone question mark crazy, and given you a way to determine, finally, where those darn links are coming from. For instance, these are the links that are Hot In My Communities for my profile.
Let's say I don't want links like Fox.com (#1) showing up in my list. All I need to do is click the question mark (?) to see which of the sites I read have linked to Fox.com to cause it to appear in my list.

I see that Fox.com was linked to by Casual Keystrokes, and since I'm not willing to remove myself from one of my favorite communities (Char is a great blogger), Fox.com will stay. If I did want to remove myself from her community (perish the thought), I'd travel to her community on mybloglog and click the big green button that says "Leave Community", top right-hand side of the page.
Now, if you have some spare time, go check out your own question marks. Seeing where those links come from is half the fun of the list.
