MarriedButLonely

That's the idea behind this website who's members are up for a little extra marital activity. MarriedbutLonely.com is a for anyone who's married but is looking for a "little extra" outside the marriage.

What You'll Find

They've been online since 2003 and have nearly 3,000 members - quite a lot lower than other similar sites you can go to. It serves the US, South America and Europe. There's a pretty wide range of people inside looking for all manor of relationship.

As you might imagine, many members are looking for no strings sex, but some people are interested in long term mistresses or companions. Most of the members on the site are male, so women will definitely have lots of partners to choose from.

Service

Basic services are available on the site, and include messaging, advanced searches, checking who's online, and group chatrooms. Private chat is available to paying members. The picture rating tool is fun, and allows you to quickly view a large number of photos and express interest (or lack of). There's also a selection of adult movies available to subscribers.

Try Before You Buy

You can join the site with a three day free trial membership, but you must provide a credit card number to do so. During the free trial, you will be able to browse the profiles of other members. Keep in mind, however, that many people do not put much info in their profiles, in the interest of discretion. Those signing up should be aware that the trial will automatically upgrade to full membership unless cancelled. The unsubscribe (cancel account) button is located on the account preferences/info page.