When you sign up for internet service you are given an email address. Most people use this address as their main email. The problem with this is that when you decide to change service you loose that email address. Then later you change again, you loose it again. This is a hassle, not just for you but for everyone you exchange email with.

The solution, get an email from a 3rd party source that will not change. There are many places that offer free email service, the main 2 being Yahoo and Google. My recommendation is to get a Gmail account from Google.

At the time I'm writing this Gmail (Google) is offering 7.2 gigs of space and it's growing as you're reading this. This means you never have to delete any old mail. They also have one of the best spam filters out there.

Something Gmail offers that Yahoo don't is the ability to use your own email program like Outlook, Outlook Express and so on as well as using a web browser in case you on the road and need to access your email. They also offer the ability to have Gmail get your email from other servers, an example would be, if your using your IP's (internet provider's) email (you@wi.rr.com) and you want to switch to Gmail, you can have Gmail get the mail from your old account in case some people didn't get your new address.

Actually, they have many options, to see more, sign up for an account here (gmail.com).