Pathfinding Tutorial
Use Corona SDK and the free Jumper library to do A* pathfinding in your games - over 60 minutes of video + sample code!
Product Creation Station
Probably the most comprehensive (yet easy to follow) course on product creation available online.
List Profit System
From marketing master Jimmy D Brown with added videos and bonuses, the only list building info you need.
Chunk Copywriting Course
Writing great copy is easy when you watch these video tutorials -- anyone can do it!
Sonic Sneak
The most all-around comprehensive link cloaker and tracker on the market.