www.behindthename.com
Etymology and history of names.

knowledgenews.net
Explores the history, science, and culture behind the news and events.

www.wikipedia.org
A free-content encyclopedia to which anyone can contribute.

www.nineplanets.org
An overview of the history, mythology, and current scientific knowledge of each planet and the major moons in our solar system.

www.aerospaceweb.org
Provides educational information on a variety of subjects ranging from aviation to space travel to weaponry.

BBC News
General worldwide news site.

www.spaceref.com
Space and science related news.

www.technologyreview.com
Science and technology related news and articles.

www.historynet.com
Historical news and articles.

www.encyclopedia.com
General encyclopedia.

Winner's Circle Network
At Kelltium, we’re big fans of Lou Tice. Sign up for the Winner’s Circle Network; daily words of wisdom on motivation and personal development.

www.dexterity.com
Articles on personal productivity and motivation including ‘How to get more done in less time’ and ‘clean up that mess!’.

www.langa.com
Advice, articles and free newsletter on how to make the best of computers and technology.

There are several newsletters that highlight some of the best web sites on particular subjects. Try:

http://marylaine.com/subscrib.html
http://www.refdesk.com/
http://lii.org/