I was contacted by over 1000 women in a couple of weeks. I made a point of ignoring profiles that had photos of women in bikinis or underwear or were from teenagers (the majority). I was ruthless in weeding out potential scams, but discovered that even women whom I had independently confirmed to be genuine people were all eventually after money. Many asked for cash on 1st or 2nd contact - usually a relatively small amount to buy a webcam or for a "health check". Others were more clever and subtle - gaining my confidence over a couple of weeks, then hitting for a more substantial sum for some dire emergency. These included typhoon damage (I checked the weather charts - didn't touch her city), rabies injections (no bite visible on cam), kids asthma (couldn't tell me anything about required medication), parent's treatment for schistosomiasis (I pointed out that it costs $2 for one tablet, taken once a year), $1000+ costs for marriage annulment (for someone I had never met!!), expensive computer repairs, etc etc etc. I was even asked to pay for a jeepney registration - very creative. I agree with the guy above - go there and meet real people. Don't waste your time money and emotions on these sites, and do everybody a favour by referring other potential users to these reviews.
Pros
zillions of contacts...
Cons
...but all rubbish