Those of you with functioning eyeballs will surely have noticed the addition of Google ads at the tail end of the first three posts on the main page. Don't be too alarmed. SBN is testing out some different ways of monetizing our blogs and Google ads is just one of them.
I'll keep you posted if I hear anything else, and feel free to post feedback in the comments here.
UPDATE: Wow, the ad on the first post is especially obtrusive, particularly on short posts like this one. I guess I will just have to adapt and learn to be more verbose with my writing.