The main difference in the Google Webmaster guidelines is that Google is now offering up more information on many of the topics mentioned. (In other words, the rules are still mostly the same, Google is just giving you more information about them.

For example, if you"ve ever wondered what Google means by "no cloaking or sneaky redirects" you now have quick and easy access to a full answer.

When Googlebot indexes a page containing Javascript, it will index that page but it cannot follow or index any links hidden in the Javascript itself. Use of Javascript is an entirely legitimate web practice. However, use of Javascript with the intent to deceive search engines is not. For instance, placing different text in Javascript than in a noscript tag violates our webmaster guidelines because it displays different content for users (who see the Javascript-based text) than for search engines (which see the noscript-based text). Along those lines, it violates the webmaster guidelines to embed a link in Javascript that redirects the user to a different page with the intent to show the user a different page than the search engine sees. When a redirect link is embedded in Javascript, the search engine indexes the original page rather than following the link, whereas users are taken to the redirect target. Like cloaking, this practice is deceptive because it displays different content to users and to Googlebot, and can take a visitor somewhere other than where they intended to go.

It"s also worth noting that Google has now included "official" statements on why they want webmasters to report paid links.

Interesting. Basically, Google is saying that if you sell links and refuse to nofollow them, then you"re putting yourself (and your advertisers) at risk.

Somehow, I don"t think that"s going to go over well.