Yeah, I'm sure the ads will be similar to Facebooks soon. But possibly less annoying/more personalized.

I think this is the real concern for Twitter. G+ can kind of do what Twitter does, and G+ is much easier to monetize.

Facebook's ads aren't personalized enough?! I post that a had a good BM this morning and there's an ad for Charmin and Welch's prune juice on the thread! How much more personalized do you want?