Installing Plugins in WordPress
Making use of the huge range of great plugins (essentially add-on code for your website) became wonderfully easy from WordPress 2.7 and onwards.

Here we show you how to quickly and easily find and add plugins to your self-hosted WordPress website.
Insights – Plugin Tutorial – Awesome WordPress Media and Links tool
Insights

What It Does: Allows you to quickly and easily, search for and insert YouTube movies, royalty free images from Flickr, Wikipedia links, Google searches and even links from your own site, into your posts and pages.
Insights uses a dynamic AJAX interface which loads search results in seconds, all within the WordPress posting page!
Who Needs It: Anyone that has a self-hosted WordPress website.
New WordPress E-Commerce plugin hits it out of the park
If you’ve been looking for a smooth, cleanly implemented, well supported e-commerce solution for WordPress then read on…
Shopp
What It Does: Allows you to sell both shipped and digital products or services from your WordPress website. It offers a variety of different payment gateways to suit many nationalities and requirements. All major gateways such as PayPal are supported.
Who Needs It: Anyone that wants a serious e-commerce business.
