Provide link to Telegram social api (to create Bot or Read / Write datas)

Minor change. Yelp API description had a typo: "bussiness". Simply fixed this to "business".

A token is needed

Stattleship is a sports-centric API offering all 4 major U.S. sports

Added a possible missing 'a'.

Feel free to ignore :)

Include Steam API in video games section.

Add 2 text placeholder APIs

add exchange rates api + a-z sort order

Add callook.info for United States ham radio callsign data.

Add more social apis, related to: issue #58

Chuck Norris!

Unsplash now support OAuth2.

RESTful API supporting OAuth2 and JSONP.
App registration is mandatory, non-commercial usage is for free.