[oddurmagg]

What other services like this are out there ?

I know of loader.io but I am specifically looking for ones which I can script to simulate real users.

[zentrus]

Also http://blitz.io

[eli]

http://blazemeter.com/ ?

[dmitrig01]

http://loadimpact.com/

[mgkimsal]

https://wondernetwork.com/loadtesting ??

[druiid]

I've used loadimpact.com before. Pretty good scripting capabilities.