CoinUrl paid for shortening urls: https://coinurl.com/index.php?ref=dilly

http://cur.lv/x2ak  BitVisitor (pretty popular been around for awhile), pays Btc for visiting websites pretty simple

http://cur.lv/x2ah  ABitBack earn Btc for watching videos, surveys, downloads, completing offers, etc (currently pays Btc or Ltc, LibertyReserve soon)

http://cur.lv/qwdn  Pyramining, basically you're investing in mining equipment at another location