Dev4press.com published an excellent analysis last month, looking at how many different, popular WP Plugins affect the load time and speed of your Word Press site. This is a very important for any author who is maintaining their own site using the popular Word Press platform. You do have an author site, right?
“For this article I have tested 35 plugins. This includes both free and commercial plugins, big and small plugins and all of them are tested on the admin side and on the website frontend. All tests are done with a single installation, and WordPress 3.3 RC1 was used. Tests are done on the local server with PHP 5.3.8.”