It boasts that 300,000 users become members of the site every month - making it reasonable to check back often.
Coffee Meets Bagel is free, but it does require a Facebook account and it is only available in limited areas of the United States.
It has social networking aspects such as a blog and an add a friend feature. OKCupid allows users to create an individual matching system in order to find the most compatible singles.
Users can take over a dozen quizzes and answer hundreds of questions on everything from whether or not they believe in love at first sight, to questions about values and morals, to really narrow down their matches.
However, if you only have a few minutes, it can be a good starting point.
The profiles on Mingle2 are pretty brief, but one advantage is that it allows you to search for people by interest.
Connecting Singles has some fun embellishments that make it a little different from other sites.
One advantage is that it's been around since 1997, long enough to have a base of over 5 million users, even though it is a lesser-known site.
You can also view the site in Spanish or Portuguese, which may be helpful if you are bilingual.
Soul Mate Find is geared toward people who are trying to find life partners.
While using the site is free, it does require "credits" which you earn by logging in every day or by referring friends to the site.