San Francisco, California (CNN) -- Web sites come and go, but the short bursts of text you publish on one Web site in particular -- Twitter.com --may end up having a longer shelf life than the company itself.

CNN: Who said tweets are trivial?

Only after that can the exchange formally adopt the rules, publish them on their Web site and begin operations.

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Third, if the member of Congress refuses to agree to end all earmarks, then demand that they publish in their district newsletter and on their Web site all earmarks requested, and those approved.

CNN: Commentary: Why we secretly love earmarks

This family-oriented site, which combines magazine format with Web flexibility to publish new articles every day instead of once a week or once a month, has unveiled a special Halloween section.

CNN: Halloween spirits are on The Web