Scenarios

#1 Instagram Vacation Viewer
#2 Guess the Album
#3 Antisocial Network
#4 Baseball Is Life

Interesting APIs

Twilio
forecast.io
flickr
Instagram
Facebook
Twitter
Google (maps/search/etc)
IFTTT
Foursquare
Spotify
rdio
last.fm
ESPN
Jawbone Up
Moves
Philips Hue
Marvel

Further Reading