I'm a longtime LoadRunner user and I'm interested in getting up to speed on what else is available in the open-source or free world.

Other than JMeter and loadUI, what else is out there? Is RadView's WebLoad more or less dead?

Any other tools like this you would recommend I investigate?

My needs would be mostly for web-based performance testing. I think the sites use JavaScript and maybe AJAX.

Thanks very much in advance!