Online dating or Internet dating is a dating system which allows individuals, couples and groups to make contact and communicate with each other over the Internet, usually with the objective of developing a personal romantic or sexual relationship. Online dating services usually provide unmoderated matchmaking over the Internet, through the use of personal computers or cell phones.

Here’s  a list of Free Dating Sites

Plentyoffish – PlentyofFish is a free online dating service. The founder and sole operator, 29-year-old Markus Frind, runs the site from his 83-square-metre Vancouver apartment. The site pulls in more than $5 million a year from Google advertising. Members can add photographs, if they choose to do so. Members can flag another person’s photographs if they are not clear photographs of that person….

Date Hookup – DateHookup.com is a 100% free dating site (you knew that already right?). Why does that matter? Well, besides the obvious benefit of being free for everything, we can have a lot of great features that pay sites don’t have. Pay sites are only concerned with one thing, getting you to pay. All we care about is you having a good experience using this site so you can tell your single friends to join!…
OKCupid – OkCupid is a free-of-charge social networking and dating website, which also offers features including user-generated content such as blogging and member-created quizzes. OkCupid users are presented with questions (most of which are authored, submitted, and vetted by members) about various topics such as politics and tastes page by page, and given a list of up to four answers per question to choose from.
Mingle2 – Mingle2 is a free online dating site where men and women can meet up for friendship or romance. Site members anywhere in the world can keep in touch either online or use the easy zip code search option to locate singles in their own vicinity. Signing up and creating a member profile is a simple, hassle free process. After creating a profile one can head over to the forums or use the site’s new Mutual Match feature to discreetly view profiles of those that have similar interests.
MatchDoctor
WebDate
FriendsReunitedDating.co.uk – Friends Reunited Dating was launched in September 2003 and now has almost one million members making it one of the largest online dating sites in the UK. A sister site of the popular Friends Reunited website (over 19 million members), this dating site is about meeting new friends as a potential partner. You have all the tools here you need to find a date. Friends
Woome - WooMe brings the speed dating craze online and extends it to let users meet new people live in fast, fun and free speed sessions. There are no long forms or lengthy profile descriptions, simply find a session that interests you and meet 5 people in 5 minutes. Backed by Niklas Zennstrom’s (Skype Founder) Atomico Investments, the original investors in Skype (Mangrove Capital), and Klaus Hommels (Europe’s Investor of the Year, 2006),
Connecting Singles - Connecting Singles is a completely free online dating site for singles. One can browse profiles for free, sign up for free and contact other prospective matches for free. Locating others is quick and easy with the help of the site’s area/zip code locator. One can opt to find others in the same locale or expand their horizons and search through international profile listings. Members can not only make free contact, they can use the Send Flowers option to let others know they’re interested.
Person – One hot new dating personals website that is completely free to use is Person.com. They are growing and have over 250,000 members within the first year! Their membership includes people from around the world, so you can find your love match or a new best friend, today!
Smooch
Freedating.co.uk
ProfilePic
Flirtomatic
Speeddate
Midsummers Eve
Matchfinder.com.au
Kijiji.ca Personals
DownToEarth

Source , TechCrunch