16 While Page Rank in the Google Toolbar shows as round numbers, Google itself calculates it to fractional numbers. Meaning, even if you show as a PR5 the websites above you who are a PR5 may actually be a PR 5.9 and there is an exponential difference as you go up in Page Rank. Going from a PR4 to 5 is easy. Going from 5-6 is tough but doable. Going from a 6 to 7 gets really friggin’ hard. If you type in just “http:” at Google you’ll see the TOP ranked sites in the World Wide Web- roughly in order.
17. To check all 10 Google data centers at once go to
http://googledance.seochat.com/
18. You need a good bit of patience before you see results from SEO techniques to work. Though, Google has been quick to react to changes lately.
19. For immediate visibility check out Overture/AdWords and analyze your potential ROI for various phrases.
20. All the page tweaking and SEOing of a website won’t mean anything unless you have or get LINKS to your site.
21. Utilize ROBOTS.TXT files to save bandwidth on your ‘image’ directory or to 'noindex' a page that you don’t want people to find. One very good example of this is to specifically ban picture bots that do obey robots.txt and to ban the Internet Archive (Way back Machine) bot so that people like me cannot see what your site looked like 6 months ago or a year ago. Often, I have found some juicy info for clients using way back machine and viewing the OLDEST versions of their competitor’s websites. Like personal e-mail accounts, home phone numbers, and general insight into the competition.
22. Follow good coding like DOCTYPES and if possible validation
http://validator.w3.org/ Don’t become one of those “I’ll do anything to show my w3c button” to the point where you are spending hours just to validate. Some of the top sites in the world don’t validate and they survive.