An important thing to note is the effect that localized searches will have on search engines. For example, say you’re in Atlanta and you’re looking for a photographer for your wedding. When you search “wedding photography” it wouldn’t be helpful to see results of photographers in Los Angeles. This is why Google takes into account where you are when you search for certain words, and shows you listings from businesses that are close in proximity to you.
Some search engines have also reached out to the SEO industry, and are frequent sponsors and guests at SEO conferences, webchats, and seminars. Major search engines provide information and guidelines to help with website optimization. Google has a Sitemaps program to help webmasters learn if Google is having any problems indexing their website and also provides data on Google traffic to the website. Bing Webmaster Tools provides a way for webmasters to submit a sitemap and web feeds, allows users to determine the "crawl rate", and track the web pages index status.
Remember when you used to rely solely on search engines for traffic? Remember when you worked on SEO and lived and died by your placement in Google? Were you #1? Assured success. Well, okay, maybe not assured. Success only came if the keywords were relevant to your site users, but it was the only real roadmap to generating site traffic and revenue.