Everybody is calling everyone else, apparently, in a monster repackaging of data, re-presenting info on my website (please stay here, don’t go to the source) and especially via mobile apps. REST is killing SOAP. Some info on the numbers, republished from a ReadWriteWeb post:
Perhaps most illustrative is his “API Billionaire’s Club.”
Members of the club include Google and Facebook with 5 billion AP calls per day. Twitter has 3 billion per day. Ebay has 8 billion per month. NPR gets 1.1 billion calls per month for its API-delivered stories. Saleforce.com gets 50% of its traffic through its API.
Full story here with some more interesting numbers.