How to read change in google's algorithm?

How to know change in google's spider algorithm....?

 

update your content often

 

I would think Matt Cutt's would talk about it on his blog:

http://www.mattcutts.com/blog/

I believe that Google is always making changes to their algorithm though. Major changes only happen every so often and will probably be something Matt will announce or discuss.

 

Ya, google is going to implement a new change in it's algorithm, The beta version is avaliable
Check this http://www2.sandbox.google.com/