Anything sent in plaintext (not encrypted) is up for grabs.
That includes:
•IM conversations
•Pageviews to unsecure sites
•FTP
Keep in mind that any legitimate/successful banking/retail website uses encryption, however.
What's important to note is this:
•Use a good software firewall
•If checking email with a POP/SMTP client, make sure SSL is in use. (see screenshot)
•If possible, setup a VPN at your home, and then just VPN to it and use it to secure everything. That's what I do.
