Read/WriteWeb: Personalized Search Primer

I have a guest article on Richard MacManus' Read/WriteWeb, "Personalized Search Primer - And Google's Approach".

From the introduction:

Google has received much attention, not all of it positive, for its efforts to personalize search.

In this article, I will briefly describe personalized search, why Google and other search engines are trying to do personalized search, the approach Google is taking toward personalized search, and other approaches to personalized search.

Go read the whole article.