Blogs

Deathmarked
Card and deck strategies and discussion.
http://death-mark.blogspot.com/

Magic: The Gathering on Squidoo
Detailed information on Magic: The Gathering. Expansion set overview and information.
http://www.squidoo.com/magic-the-gathering/

Magic the Gathering Online Drafting
Strategy Blog
http://draftbetter.com

MTG Players
Forum, spoilers, articles, discussion and information.
http://www.mtgplayers.com

MTG World. Articles, Decks, Tournaments, Rules.
Articles, decks, players, and tournaments.
http://cardgatherer.blogspot.com/