There are many changes taking place in the top search engines.
Google, Yahoo, and MSN are all adapting to the many
transformations occuring within the search industry.

In July
of 2006, Google updated their landing page algorithm. These
changes have harmed a number of online marketers.

They have changed the name of their search engine spiders.
Before the changes, they were all called "msnbot,". Fortunately,
they are now starting to group their spiders into separate
categories.

The new
crawler is faster and more efficient at visiting websites. As a
result, website owners should notice as much as a 25% reduction
in the number of requests and bandwidth consumed by the Yahoo
crawler.