The X-Man Xtravaganza is another great X-Man Page, featuring in-depth issue summaries, slick refinished cover scans and images, and character bios of Nate's supporting cast.

Blood and Metal: The Nathan Summers Page, by David Downie, has a ton of pictures and comic covers to download and complete summaries of early Cable history in The Cable Guide. 

David Downie and Kieth J. Davidsen's Zen Guru FullForce X-Force Page (try saying that ten times fast) is the definitive X-Force resource, featuring bios, graphics, and "X-Force Rarities": a comprehensive guide to comics outside of the mainstream X-Universe that X-Force members have appeared in.

Haven't a clue who that mysterious character everyone wants to see again is? Shannon Pipik's Limbo: Page of the Forgotten Mutants might be just what you need.

Steve Thoemke's Mutant Pages is the Original resource for X-Men-Related materials and images. 

X-Page Hotlist, formerly known as The Uncanny X-Page, is THE central source for all things X on the net.

Jonah Weiland's Comic Book Resources contains graphics, sounds, several comic message boards, and more links than you'll ever want to shake a stick at. While you're at it, check out The Kingdom Come Home Page, dedicated to DC's four issue Kingdom Come limited series by Alex Ross and Mark Waid.