For those of you who don't know the difference then here ya go:
What are the different sections on the Search results page?
Sponsor Results: Sponsor Results are sites that pay for placement in search results on keywords that are relevant to their business. These listings are Yahoo! Sponsored Search listings and appear on Yahoo! Search results pages and other sections of Yahoo!. You'll see Sponsor Results when they're relevant to the specific search terms you used. For example, if you search for "digital cameras," you'll see Sponsor Results for web sites that provide information about or sell digital cameras. The Yahoo! Search results pages separate Sponsor Results from other results so you can tell them apart. For more information please refer to the Sponsor Results FAQs. To participate in this program, please see Sponsored Search.
Web Results: Web Results are the most relevant web pages found in response to your search query. Web Results are generated from the billions of web pages discovered, crawled, reviewed, submitted, or otherwise included in the Yahoo! Search index. More than 99% of web pages in the Yahoo! Search index are included for free through Yahoo!'s web crawl process.
Web Results may also include links to sites that participate in the Content Acquisition Program (CAP). CAP enables content providers to submit web content directly to Yahoo! for review and inclusion in the Yahoo! Search index; content providers that participate in CAP through the Search Submit program pay for these services. Participation in CAP or Site Match does not guarantee placement or ranking in search results but additional information made available through the direct data feeds may increase or decrease relevance depending on the search query.
Within web results you may also see:
Hard work pays off in the future. Laziness pays off now
