A List Apart
http://www.alistapart.com/
From pixels to prose, coding to content: a weekly online magazine for people who make web sites.
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Learn The Net
http://www.learnthenet.com
Dedicated to helping you save time and money when roaming through cyberspace by Larry Magid.
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OnlineNetiquette.com
http://www.onlinenetiquette.com/
Offers tips on common courtesies for newbies and lazy netizens.
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The Living Internet
http://www.livinginternet.com/
Source of information about the Internet covering the history of email, usenet, IRC, MUDs, mailing lists, the Web, and more.
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