Always use caution when registering for a new site and read all of the fine print.

Since free sites have no barriers to entry, they are sometimes used as a way for scammers to set up free profiles to ask for money.

Both sites let people browse ads for free, but they must pay if they want to respond to these ads or read and reply to messages they receive.

In addition, some sites, like e Harmony, offer free trials but require credit card information before that trial begins, hoping users will forget to cancel.

These interests can be anything from spending time with your kids to engaging in interesting philosophical conversations.

Connecting Singles has some fun embellishments that make it a little different from other sites.

For example, you can play games, send virtual flowers and deliver e-cards to those you are interested in connecting with.

Oasis Active offers the option to search for romantic partners or platonic friends.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.All of the sites listed here are free to browse, to set up a profile, and to communicate with others via message or email -- whether you initiate the contact or the other person does.Date Hookup's criteria include hair and eye color, education, personality (shy or outgoing) and occupation.Setting up and replying to personal ads online can get expensive.