Ads by user is free to all apsense members,all you need to do is click ads by user in your any page that opens in apsense, you will get it below a profile,articles,etc remember i don't mean ads by apsense but i mean 'ads by user' don't click the ads title,just click ads by user' direct ,is always clickable. Then edit or add your ads in profiles,bulletins,articles, and so on, note that revpage ads is for only upgraded members.
This help you get website traffics,sale your products,and so on.
Want to know how it looks like? visit my apsense profile view my business center you will see my ads by user click the title to view how it looks click 'ads by user' under to add your own.