Question: I know of a couple tools to measure end user web site performance and I'm wondering what else is out there. The two major ones I know of are [yslow](http://developer.yahoo.com/yslow) and [Google's page speed](http://code.google.com/speed/page-speed).

Answer: 
[Zoompf](http://zoompf.com/) & MSFast/MySpace’s Performance Tracker are two other notable free web performance analysis & optimization tools
[Octagate's Site Timer](http://www.octagate.com/service/SiteTimer/) provides a graphical view of the load time if you want a web site, or you can get similar statistics with Chrome and Opera's developer tools.

![Octagate example result](https://i.stack.imgur.com/M0AA6.png)
![Chrome example result](https://i.stack.imgur.com/fxcap.png)
![Opera example result](https://i.stack.imgur.com/mlYj6.png)