Personally I cannot live without my XHTMLSuite in2it WYSIWYG Editor but for those projects that it is not feasible to use in2it (for a client site for instance) - TMEdit is a god sent!

Hands down the best free WYSIWYG Editor for Joomla and second only to XHTMLSuite's in2it Editor.

I really like this plugin. It is simple and it does what it is supposed to do with several support options and if you want to use it as a ad spot, you can of course use it for that as well.

The title says it all - if you use Google Analytics then there is no reason why you would not use this module.

It gives you a ton of additional functionality to tracking your traffic that the regular js script that google furnishes can do.

This is a very simple script but it does what it needs to do; making it ridicules simple to add Piwik tracking code to your Joomla Site.

As a side note - Piwik is an Open Source tracking system with a great potential that runs on your own server allowing you to have a central setup running several domains from one install for easy overview.