PlentyofFish.com
Price: Free.Users per month*: 2.75 million.
Registration time: 12.5 minutes.
Pros: Costs nothing; easy to use; has a huge pool of people to flirt and connect with; boasts 120,000 marriages a year.
Cons: Distorted or fuzzy images; unattractive website.
Match.com
Price: $30 per month.Users per month*: 2.75 million.
Registration time: 15 minutes.
Pros: Simple to navigate; finds matches based on keyword descriptions; provides apps for smartphones.
Cons: Poor screening techniques.
True.com
Price: $50 a month.Users per month*: 2.5 million people.
Registration time: 10 minutes.
Pros: Safer than some sites, since members must submit to a background check; has a fun, flirty environment.
Cons: Tacky advertisements.
EHarmony.com
Price: $60 a month.Users per month*: 1.75 million.
Registration time: 25 minutes.
Pros: They do the matching for you, based on a detailed questionnaire; an advice section with expert and member tips.
Cons: Generic profiles; more expensive than other sites.
*The numbers for users per month are based on research by ComScore.
