Last year I suggested that MyBlogLog (Yahoo) should try and buy Feedburner. They didn't. Google got their first. I thought the purchase would have been interesting as it would have given Yahoo access to a backbone module of the blogging community.
I'm not sure Google's doing as well as Google can do with Feedburner. I like RSS ads. I've run some successful campaigns with the old Feedburner system... whereas there have been disucssion as to whether RSS advertising is going backwards currently.
Today I can't even log into Feedburner.
Anyone else getting the 500 lockout?