Some mobile apps will match you with people based on criteria, including age, gender, and geographic proximity.

More traditional sites may offer anything from a simple search to a highly specific advanced search.

Likewise, evaluating a dating site before using it is essential, and it will bring you that much closer to finding a good match.

Most dating sites have become extremely good about policing their members for negative or unsafe behavior.

There are several sites that offer additional levels of security including background checks and photo verification.

OKCupid is one of the most popular dating sites and is free to sign up initially.

It works with special algorithms that match users with potential dates.

Launched in 2004, OKCupid works with many populations of people.

Bumble is a dating app that only allows women to initiate contact in opposite-sex connections; in same-sex connections either party may initiate contact. Since 2012, Tinder has been matching singles based on their social profiles and geographic location. Both users must “swipe right” before being matched and are then able to chat within the app.

If you have a very specific set of interests, there are many sites that may cater to your niche.

Some of these niche sites are Farmersonly.com, Millionaire Match.com, Geek2Geek.com, JDate, Dandy, Pinksofa.com, Christian Mingle and Positive Singles.

View Profile Harvard Business School graduate, Mark Brooks, has been an expert in the Internet dating business since 1998.