I had mentioned a few ways to avoid junk mail in my article http://oksoft.antville.org/stories/140047/
There is a better way of dealing with the junk mail. You can create temporary, use and throw type of e-mail addresses. For e.g. whenever a site ask for my e-mail address and I don't want to disclose my true yahoo e-mail address, What I do is, simply create a new one on the fly! If the site name is freehouse.com, I tell it that my e-mail is, freehouse@shantanuo.cjb.net
Now when they send me an e-mail, I receive it in my yahoo inbox. If I find that it's a junk mail, I simply login to cjb.net and forward my newly created e-mail freehouse@shantanuo.cjb.net to junk@hotmail.com or something like that.
This method is better than blocking the sender's e-mail address, because spammers often change their "from" e-mail address.
Once you register with cjb.net you can create as many e-mail addresses as you want! All e-mail addresses will be forwarded to your true email account. If you don't want one of those addresses, simply forward it to somewhere else!
This site does not only help you to fight spam but it's a great tool to get organized. So what are you waiting for? start today! http://www.cjb.net

Hi - I just came across your site and thought wow this is great. Many thanks for all the info and tips - it certainly will come in useful. I'll be paying many more visits.

Sue
Frontpage and Australian Dreaming

Here's an interesting and free email concept...
Welcome to Mailinator - Its no signup, instant email.
http://www.mailinator.com
If you want only one email from that person/site, create an email on the spot. You don't need to sign-up. A good idea will be to create one with the name of the website in it for e.g. if you want to create a fake e-mail while filling up a form at amazon, tell them, your email is amazon@mailinator.com Later, go to this site and check the email for that account. Its that easy. Mailinator accounts are created when mail arrives for them. The emails will automatically be deleted for you after a few hours.