Sponsored links on Yahoo! or on ZDNet/CNET/Download.com does not mean approval by these services or quality or popularity. It's just an indication that the "sponsors" payed to get a placement on their search result pages.

I never follow such sponsored links on any site, unless this was the site I really wanted to visit before making the search...
Anyone can buy a placement on these services even for a poor and bogous product. There's no a-priori control, except for the payment itself. Of course if the sponsored link reveals to be a scam, Yahoo can make something after scrutiny, but only if the sponsor broke a Yahoo TOS policy, or if there's something illegal according to the US law. A link by itself is not illegal, unless the whole sponsored site is declared illegal. It will be easier to demonstrate a breach in the Yahoo TOS policy, if the sponsor uses its link on Yahoo to perform abusive operations such as spamming (the link alone shown on Yahoo results is not a spam), or abuse of a reserved trademark (if that link uses "LimeWire" in its domain name and describe its service without permission from Lime Wire LLC, NYC, USA). What can be done in this case is that LimeWire contacts Yahoo to claim its ownership on the registered trademark.

This said, the first two "sponsored results" on Yahoo are not working now (domain name parked?):
- www(dot)limewire-downloads(dot)com
- www(dot)limewiresoftware(dot)com
But the three others are still working:
- mp3downloadhq(dot)com
- www(dot)mp3sharing(dot)us
- www(dot)mp3musiczone(dot)com
The last three include the terms "with LimeWire" in their description, and this is an abuse of trademark. Additionally, none of these sites respect the GPL licence for the software copyright. Who will pay $1/month for these scammers that want you to pay to download a free software, modified with spywares and an illegal licence?

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