If you are saying making money by replacing mns with Squidoo lenses I say that it can be a pretty good alternative, once there you automatically gain a seo boost from the domain and all the links inside squidoo pointing to your lens (from tags, others...), it's free, anonymous, extremelly simple and you can blast the *hit out of your lenses with backlinks and it's much more unlikely that google will penalize you.The bigger downside is that you'll be sharing a big part of your revenues with squidoo, also you don't really own anything squidoo can take all your lenses away any second...If you are saying making money by using the lenses to create backlinks then I really don't see a downside there as long as you don't over do it.Hope it helped, cheers!