You will find website hosting reviews useful in this process. Many hosting review websites will give you information about uptime and quality of support. They may also allow visitors to publish reviews of hosting companies. This will help you get a better understanding of how good a company is; though I still recommend due diligence and doing further research on your own.
Be sure to check out my Complete Guide to Website Hosting for a better understanding of hosting a website online.
Hosting Facts provides reviews for a wide number of hosting companies. It grades each service according to quality of support, uptime, price, and speed.
A detailed review is available for each company listed on the website.