I use Gmail. I used to use my internet provider's e-mail, but every time I changed providers, I had to change my e-mail address and notify all of my contacts. I got tired of doing that.
With Gmail, I can sign up for multiple accounts, one personal, one for HubPages, etc. Every time I need an account, I get one. I even have one for all of those times you have to give an e-mail address but don't really want to. I haven't been to it since I opened it.