Twitter Lists:
China http://twitter.com/chewelahboy/china
ASIA http://twitter.com/chewelahboy/asia
Padding (iPad) http://twitter.com/chewelahboy/padding
ResourceWars http://twitter.com/chewelahboy/ResourceWars
Cloud-Tech: http://twitter.com/chewelahboy/cloud-tech
Global Tech: http://twitter.com/chewelahboy/globaltech
Gold: http://twitter.com/chewelahboy/gold
Investing: http://twitter.com/chewelahboy/investing
Use Google site-specific search with Twitter hash tag keywords:
Twitter users employ hash tag keywords to create posts posts linked to a hash tag category. Hash Tag keywords may be accessed using Twitter's search function, and twitter users may use Google site search:
Search Twitter.com for #ResourceWars.
Search Twitter for #ResistanceIsFutile (without quotes).
Search Twitter for #China. (with quotes)
Another tag used with keywords on Twitter is the "$". Twitter posts relative to stock ticker symbols commonly include the "$". For example, a Google site query for $AAPL will produce a list of twitter posts related to Apple Computer.
Here are other stock symbol searches using Google:
Boeing $BA Facebook $FB China Mobile (ADR) $CHL

