http://on-my-iphone.com/omi/members/jimmy/groups/

Feel free to register and either add new groups or join groups depending on what applications you have installed.   Try to search for what exists before adding new groups and add tags to help people find related applications (eg. add cydia to a cydia only app).  Also when adding groups, use the button to start the process and go through all the create group steps otherwise it won’t get added properly.

Once you have your list complete, you can send people direct to your list of apps as I have done above.