I love playing games online, not only is it a great way to have some fun but it's also a great relaxation technique I use while working at home. Let's face it, sometimes we get too busy to even bother leaving the computer. But what's nice about these games is all you have to do is type in a simple URL, and play away. Popular "household brands" such as Pogo, and iWin will have you make personal accounts up. These accounts will allow you to keep scores, add favorite games to your account, and much more. The con with sites such as the ones listed above, is you have to make an account to even play and you never really get the full advantage unless you actually become a paid member. Most people are on the fence about the paid membership decision. Some people have no problem paying for some really cool games, and other people don't want to even be bothered with having another "bill" to pay at the end of the month. In the end, it's a personal choice whether you decide to be a free member or a paid member or if you decide to make an account or not.

In other cases, websites such as Addicting Games and MiniClip are completely 100% free to play. There are tons of games and game categories on sites such as these here are a few that may be included:

3D
Kids
Motor sports
Sports
Multi-player
Puzzle
Learning
Memorizing
Racing
Platform
Retro
Arcade

This is just a very small list! You can also find other sites that will allow you to play games in specifics such as Race Car Gaming sites, Brain Teasers, Point & Click and many more. On some of these sites you are allowed to apply for accounts, but it's not absolutely necessary to play the games. The accounts just allow you to keep track of things like high scores, high scores on games you have played, comments and ratings you have submitted, or high scores against other player. In any case, pending on what site you choose to play on, pay for, or make accounts on, you will still have a ton of gaming options to choose from. Note most of these sites do not have games you can play with other people. In most cases you will be playing by yourself or against a computerized player. But still, these games can be a ton of fun even if you are playing alone!

Good luck with finding the perfect site for your gaming needs! One thing is for sure, you won't ever run out of games to play or sites to choose from!