Live Search Likes and Dislikes

MSN likes theme-based pages and pages that have a relatively high key word density. You might need a higher density then is normally done for google.
MSN likes well ordered HTML, and a hierarchical structure with good use of H1 and H2 tags.
MSN likes Keywords in the URL
MSN relies heavily upon anchor text in links, title attribute in links and alt tags in images
Take care when writing for the Description Meta Tag, it is the only Meta tag that matters and holds some importance
Don't have duplicate content, MSN's duplicate content filter are reported to be better then Google's
Avoid link farms, hidden text, tiny text and all the other no no's

Google: Custom Your Own Search Engine

Webmasters have another way to make money, Google launched Custom Search Engine, it reflects your knowledge and interests, you can place it on your website, using your AdSense for Search program, make money from the resulting traffic.

Secret Live Search Operators You Don't Know

linkfromdomain
restricts your search to sites that are linked from a certain domain, you can find some of the pages / sites linked from all the pages available on that domain.

linkfromdomain:1f1t.com

linkdomain
shows only the pages that link to a page from a certain domain. The link operator from Google shows all the pages that link to the homepage of a site or to a certain page, but you can't see these aggregated results. Linkdomain operator is also available in Yahoo Search.

linkdomain:1f1t.com

contains
should be followed by a file extension and is used to restrict the search only to pages that contain links to at least a file that has that extension.

radiohead contains:ogg

Yahoo has a slightly different operator called feature, useful to show pages that have embedded content. The operator can have one of these values: audio (the page embeds audio files), video (the page embeds video files), javascript (the page has JavaScript code), flash (the page has embedded Flash), frame (the page uses frames), acrobat, applet, activex, form, table.

u2 feature:flash [ Yahoo ]

prefer
lets you give more weight to a keyword.

ipod prefer:review

loc
is used to restrict a search to domains from a certain country.

bistro loc:fr

Reviews on PR Update since Sep 29

Since the recent PR update of Google at Sep 29, I found most of the sites' PR increased back. Compare with Apr's and Jun's update, I think they have the following relationships:

Apr v1.0 (1) => Jun v1.5(2) => v1.1 => Sep v2.0 (3)

1. used a new arithmetic (new framework?) for PR which caused many new sites which even had zero PR got high PR easily. PR seems to be easy to get for new sites.

2. arithmetic adjusted: fixed the previous bug on new sites which got high PR. This is a failed test for Google PR, somebody use this time to improve his sites successfully. Conclusion: It's a good time to promote your site when Google made mistakes.

3. version 2 update of Apr arithmetic, add some new characters, Google spider will more like unique contents and aged domain. I believe Google use another trust PR to rate a site, but not the green bar on your toolbar.