At this year's SXSW, Mashery (a ProgrammableWeb sponsor) conducted a survey of attending developers and discovered something interesting: They care more about getting Commercial Terms of Service (TOS) than code samples from their APIs. Does this mean a new rash of coder/lawyers skewed the survey sample? No, it's just an indication that developers are growing up--and they expect their favorite APIs to grow with them.
Our API directory now includes 39 answers APIs. The newest is the SlimSurveys API. The most popular, in terms of mashups, is the Yahoo Answers API. We list 28 Yahoo Answers mashups. Below you'll find some more stats from the directory, including the entire list of answers APIs.