What are pay-to-play sites? These are audition sites, where you pay an annual fee to audition for as many projects as you would like. Clients go on the site to post a project they need a voice for and members audition for it. It's not a bad way to get a few clients here and there but make sure you don't put all your eggs in this basket. Spend plenty of time on direct marketing. Get in touch with talent agents, production directors, eLearning companies and video production departments inside corporations.
P2P sites have done a masterful job marketing themselves and manipulating talents into believing we need them. We don't! P2P sites can be somewhat helpful but I see way too many talents spending far too many hours on them. Can you imagine if you used half of that time marketing directly to potential VO buyers?