Cybercafes
Locate cybercafes (where you can access the internet, for a small fee) all over the world-- from About.com's guide for Net Culture. 

Free Internet Service Providers
An ISP is the company that provides you with access to the internet-- and there are a number of free options, in the US. From About.com's guide for Family Internet. 

Keeping in Touch Online
About's guide for Europe for Visitors had advice on email  for travelers.

More Free Email Accounts
A long list, at About's website for Email

Mobile Computing for Campers
How to get hooked up and online, on the road-- from About's guide for Camping.   Most of the issues are the same for non-campers too!

Access Your Own Email Account: At Dot
At Dot is a free web based e-mail service, "designed to work with your existing POP3 mail account."

Access your own Email Account: MailStart
"Your Email, Anytime, Anywhere":  check any existing email account. (Be sure you know your pop3 and smtp settings-- as a guess, try pop3.yourispname.com).

Web-based Email: Hotmail
One of a number of sites where you can set up  a free email  account that you can access from anywhere (-- as long as you have internet access to the Hotmail website.) 

Web-based Email: Netscape Webmail
Another free web-based email system-- recommended by About.com's website for Email.

Pop3 Via Hotmail
There's a way to access your own Pop3 account, through Hotmail-- according to About's guide for Email. 

Netzero
One of a number of free ISP's (Internet Service Providers-- see above.)