I prefer having my ads posted over the website. The only reason I created my website is for the TER, so I would be able to post my ads here when I need it, of coarse it's free. I have not seen any pop-ups when I look at my site..  
If you notice, websites often contain one information (e. g. prices) and ads have different/updated, same with the pictures. I'm not saying all ladies, but many. Almost all websites contain professional/airbrushed pictures. In ads, most of us--indies--post the most current self-shots, therefore more realistic. If I was a shopping-around client, I would look for the ladies' ads (e. g. p411, rs2k, on ter, even eros) rather than personal websites, but that's just me.