A good Jewish dating service will have more than one thing going for it. For a start thr website itself will be easy to navigate. But more importantly, there will be a lot of names and photos on the site. Also, membership for young Jewish singles will be low. Low enough to get a large group of people signing up. Someone must have worked out the critical mass of dating site members needed to start an avalance of memberships. There is no doubt that if there a lotso of singles in an online service, lots of Jewish young people will join up and get the benefits. So a good Jewish dating site will have a large membership of young single Jews.