What is happening is the lowest-barrier-to-entry businesses, web sites, have become the enthusiastic focus here.
The energy is there for these topics. Consider spinning off a forum on these topics; there is clear interest. Kill it if it does not get traction.
If it takes, make it plain in the MMB forum or F/MMB stickies that web-site-moneymaking is a distinct forum. See my post in ATF on 'Posting Links in the MMB Forum' for tips on how to manage an anti-spam policy for posted links across all the forums.
See:
http://forumserver.twoplustwo.com/sh...age=0&vc=1