A football odds comparison website that allows users to compare betting odds on offer at different bookmakers, helping the customer get the best price and biggest possible return. Built using the Java app engine runtime and GWT. Notable features include an autocomplete search box, use of GWT menus, dialog boxes and css sprites. More bookmakers will be added as the site is in early stages of development.

http://www.aceodds.com/football-betting

This is an open web site for people to submit or search for "geocaches". At our site, anyone not only can publish his or her "geocache", but also can provide real-time hints (GPS Cookies) about it. A "geocache" is normally a hidden container with a logbook or small trading items. P.S. Support Chinese (http://www.gpscookie.cn)and English(http://www.gpscookie.com). Also, provide JSONP web API for searching(http://gpscookieapi.appspot.com/search).

http://www.gpscookie.com

Features seasons, schedules, standings, scores, mailing lists for your sports league / team. Use your Gmail Contact Group as a subscribable mailing list for your league / team and let anybody add / remove themselves from there.

www.gTeamz.com

Get to know people that play your preferred sport in your city ! Contact people who share your experiences ! Organize all you sports meetings, tournaments or training groups ! We help you finding a sportmate !

http://www.we-sport.com

A simple weight/body fat/lean mass tracker. Currently quite bare bones, but I'm hoping to get some time to add a better UI, and nutrition/activity tracking as well.

http://fitnesschart.appspot.com