I was wondering if anyone has advertised on any of the big classified ad sites like BP ?

BP is VERY limited results....Craigslist is HUGE, but they are making it pretty difficult to advertise there...Kijiji is also decent.

Unless it gives you the benefit you are looking for, yes it does. Like TargRo this is startup free classified website which is a search engine optimised meaning whatever you post there can also be searchable.

I sell my directory submitter software with good result by using Craigslist