What types of directories are seen as sources of paid links?

What types of directories are seen as sources of paid links?

Fábio Ricotta from Brazil asks:

"Will Google consider Yahoo! Directory and BOTW as source of paid links? If no, why is this different from another site that sell links?"

Are Directory Submissions Worth It?

Are Directory Submissions Worth It?

My view on directory submissions. Watch Matt Cutts' video

Matt Answers the Question "Is Over Optimization Bad for a Website?"

Google’s Matt Cutts On "Over Optimization"

Matt Cutts, Head of Google's Webspam team has been producing daily videos answering questions from the world wide SEO community. Many of these videos having useful information for all levels of Search Engine Optimizers. I wanted to share Matt's most recent videos and point you to his other videos too.

The latest video is on "over optimization" where Matt answers the question "Is over optimization bad for a website?"

You can see all of the Webmaster Central team videos at YouTube, there is a wealth of information there, so eat it up.

Google for Webmasters Tutorial: Other Resources

A webmaster tutorial video that introduces other useful Google resources for webmasters.

Google for Webmasters Tutorial: Intro to Webmaster Central

A webmaster tutorial video that introduces what Webmaster Central offers.

Google for Webmasters Tutorial: Ranking

A webmaster tutorial video that covers how sites are displayed in Google search results.

Google for Webmasters Tutorial: Crawling and Indexing

A webmaster tutorial video that addresses crawling and indexing of sites.