Hello everyone, another newbie who need some help :)

[Joe]

Also, If I am promoting a pay site, shouldn't my content from that paysite?

Yes, you should use sponsor content for sites that look like they have exclusive content (reality sites and so on). If you promote a cookie-cutter paysite that specializes in the teen niche, you can get away with buying teen sets to promote with without losing too much in terms of conversions.

So, beside making membership sales, are there other ways I can generate money from my promo/free sites?

I'm not quite sure what you mean by that question. If you mean other payout methods besides PPS/Revshare, there are free ezines, email signups, dating sites, etc.