The advertising experiment is over with Facebook: it works.
At a clip of $2 billion in revenue this year, FB has exceeded its internal estimates. They brought $700-$800M in the door last year.
FB has a 9.4 percent share of the US display advertising market -- stunning growth when compared to Yahoo (16.2%) and Google (6.7%).
Twitter is in a re-make phase, as it builds its business -- and revenue -- models.
According to Business Insider: Kleiner is the only new investor in Twitter for the round. Previous investors in Twitter include Benchmark Capital, Union Square Ventures, Spark Capital and other angels and investors.
And Twitter has a blog post about the new dough?