I have a site that has a free side as well as a paid monthly members area that does a around $2k/mo via subscriptions as well as sale of instructional DVDs (in a sports niche). Took about six months to set up and complete and now takes about 15 minutes a day to run.

I am doing NO advertising, just youtube videos and organic SEO (heck, even though I have a killer converting opt-in form, I have a higher number of YouTube subscribers than I do on my Aweber list!)

Dominating google for keywords nets us very few subscribers, they're all hooked on the videos. We do get a lot of spill-over traffic from YouTube, but that's about it. (We have over 40 YouTube videos
up and our videos have over 1.3 million views; people really like them a lot).

Looking to ramp it up, and am wondering what the best way to do this is.

I'm thinking paid ads is the way to go, but I'm looking for more of a 'service', like an ad network or a media buying campaign management service. Really do NOT want to spend all my time haggling deals with every website in my niche to buy ad space and then have to track 20 different campaigns at the same time.

Anyone know of a solution?