At the moment I'm working on getting several sites up and running, but what i'm wondering is what to do for banner ads. Should I just start off with something like linkexchange.com or webmasterexchange.com to gather more traffic and then go on to use advertising.com or another pay-per-click/sale.

Between all of my sites (as most are under contruction) I'd say I get about 15000 page views a month.

Any advice will help a lot.

Thanks