Social Media Advertising on Promoted Tweets

Twitter is all a flitter today, volume is overwhelming the tweet system.  It must be the new Promoted Tweets program that's all about promoted messages in the regular tweet streams.  The tweets show up according to the searches made.  They've gone a social media advertising CPM model so this is going to push more servers into service faster and faster.  The cash flows could put a crimp on other search and social network giants, it really depends on the overall acceptance of receiving promoted messages and how on the money they are in terms of relevancy.  Is this the social networking 'bubble', are we all over communicating about nothing of great import?  Investing experts have been debating for a year now.