Alumni Software (Alumni Software)
Do as many Alumni Software sites as you like and re-sell, 3 free installs with developers license purchase.
See if you can think what the 25 to 40 age group would want like Alumni Software did for the 18 to 25 age group and music, then develop further your way, its still early days. Buy a Alumni Software community script.
Developers License datecomm Alumni Software SCRIPT All Source Code / Unlimited Sites Only $7900.

Alumni Software SCRIPT Developer License: When you buy the developer license of a script you can resell and redistribute the script, but not for less than i sell for, when you buy you agree not to sell the script for less than i do.