Educational/Instructional sites:

Cisco's Web Site

Router god (Funny instructional site for Cisco related routing topics)

Laura Chappel (Sniffer related training site)

IETF (Looking for an RFC?)

Internet Storm Center

MS-IASC Operations Center

Internet Traffic Report

Funny sites:

Engrish (Straight from Japan.... it's butchered English)

Demotivators (You've seen them, the funky posters that are all around corporate America)

The Subservient Chicken (Finally! A guy in a chicken suit that will do whatever you ask him to!)