Runescape.com or runescape.co.uk is a british owned online game based in Cambridge created in 1998 and is the largest MMORPG game in the world.
When you made a account for the first time you had to go around a island before you could start playing on the main map of the game and you could get certain skills on the island to a max of level 3, since then they have changed the start point when you make a new account, you help a knight defend and kill a dragon that is living under the city of lumbridge.
After you get out of the underground you can start training your skills and save thing up to put in your bank you can only carry 28 items on you (this does not include the armour and weapons you are carrying on your body and in your hands as they don't show in your inven unless you take them off)
Then you can sell your items at the grand exchange and buy other items for protection, doing other skills ect.
Now for the skills each skill starts off at level 1 and you build those skills up untill you get to level 99 (if your a member you can buy the skill cape once you hit level 99 in any skill for 99,000 gold).
Many of the skill you do are free to play but for the rest you have to become a member and pay a monthy fee of £3.50 (for the uk) or $5.99 (usa) these are the cheapest way to pay for membership the other way to pay for membership is by going to game.co.uk, gamestation.co.uk or gamestop.com to buy a 90 day membership card but the only time you can get them is when jagex advertises them on the runescape homepage.
You may have heard people complaining that runescape is full of bots that is true but there is a easy why to avoid seeing them, i tend to play on server 127 the only way to get to that server is by scrolling down to the bottom of the page to where you can see four little flags click on the green one and the whole page will change into the Portuguese Language, or you can click on the French or German flags these will let you play on other servers that don't show up on the english homepage of the site.
All in all it is a great game to play.
Edit. 3/11/11...
Jagex Staff got out the banhammers again last week and terminated an estimated 98% of the botting accounts.
The week when Jagex got out the banhammers for botters they give the players a week long event (monday to friday). The players got bonus xp for shooting stars and evil trees at the rate of 3 times the normal amount and few more. Double the amount of castle wars tickets and soul wars points and many more, the bonuses giving was different for each day, with the triple xp for shooting stars and evil trees on the same day.