I keep hearing about people meeting their mates for life on internet sites. I decided to go to the biggest site for Jewish Singles. I can't say my visits have been all that good though.
Reasons:
1) The site is cumbersome to use. The Spark company seems to be more concerned about re-arranging the look and feel rather then really improving the functionality
2) You can search on many, vital attributes - such as current family status, future status, etc.
3) I believe as far as online dating goes - this is the most expensive. (Try Match or Yahoo - good value - strong membership).

I have also found a lot of members are actually NO LONGER members - meaning they have abandoned their ID's. Now the reviewer will not know this unless they are clairvoyent. So you could be spending a lot of money and time writing to people - who just are no longer using the site. I suppose this just makes the singles count much higher then it really is.

I also did some math on the numbers signing up and meeting mates. They don't add up either.

In summary - use this site for a short while. If you think it is working - by all means stick with it. If not - drop it like a bad habit.

Final thought - I can not confirm - but have been told that only about 10-12% of people really meet on online sites. Not a great average really.