This blog (catchily titled “Google Algorithm Change History”) is an interesting resource for anyone interested in SEO, or just wondering why their (or their stalk-ee’s) website is doing better or worse this week compared to last.
Covering major algorithm changes only, descriptions are short and to-the-point, and where applicable they include links to an additional article or two with more info in case you’re particularly interested.
The list of changes recorded looks pretty comprehensive and goes back as far as 2000.
