Where can i get links to my site for free?

Now this is a question i get asked daily - and the 1st thing i would like to say is if the link sounds to good to be true , then it probably is ,, so look in to it a bit more ,,, the is no easy way to get on the top of yahoo msn and google ,,, you have to work for it ,, and i will show you how you can get some free links