Dear fellow members, I am a noob here, so need all of yours friendly tips and advice. Basically I have a site with PR-5 (Home page is PR5 and some other pages of PR4 and 3 also) and a site with PR-4 (Home page is PR4 and some other pages of PR3 also). The sites are about natural health / nature-cure niche.Links will be placed at the bottom of the page. I want to sell links from my sites in DP. I'll be very grateful if you guys clear my following confusions on this regard, 1.) How much should I charge for a link from PR-5, 4 and 3 ? Should I charge monthly basis or yearly basis or life-time ? 2.) How many links I can put in a single page with PR-5, 4 and 3 ? I just don't want to over-sell, so that the links get moderate link juice. Please guys help me about above questions and I'm sorry for my poor English.