1. Square provides credit card processing for small businesses using a small card reader. It charges 2.75% per swipe and deposits funds directly into merchants' bank accounts. 2. Foodspotting is a visual guide to restaurants and dishes that allows users to search by location, share photos of food, and bookmark or vote on foods they want to try or have enjoyed. 3. GazeHawk is a low-cost eye tracking tool for web designers that provides heat maps of the most viewed areas on websites to help optimize designs.