For two days Sirius let listeners tap its Web site and listen to Stern for free, for the first time since his satellite debut in January.

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Taking their product and pushing more and more of it to web gives them the chance to tap into growth sources that are dominant on web.

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Blogs and anti-immigration organizations used the Web to tap into the growing discontent over the immigration bill, using the Internet to organize phone and fax campaigns to urge senators to vote against the bill.

CNN: Conservative bloggers in full revolt over immigration