They are booming but certainly not "quietly" - Bitcoin is all over the news - Capital Access Network, Kabbage, etc are at multi 100M valuations - Stripe and

They are booming but certainly not "quietly" - Bitcoin is all over the news - Capital Access Network, Kabbage, etc are at multi 100M valuations - Stripe and Braintree are running around at multi 100M vals. - Simple and Green Dot / Loopt have done plenty in the PR circuit re their latest banking products. - Kickstarter / Indiegogo are very much mainstream. - Square is a PR machine at some 4-8B valuation (AFAIK)