Convergys is a big one. Those in the know already know about it, but if it's new to you, Convergys bills itself as a customer management solution. While they do a lot of in-house hiring, they also maintain an entire staff of work at home professionals.
The site careers.convergysworkathome.com focuses completely on their work from home opportunities and is filled with all of the information that you need. But generally speaking, they hire people to work from home out of specific states, and they also hire more general work from home employees.
They currently offer three types of work opportunities as outlined here: http://careers.convergysworkathome.com/job-descriptions.php
- Work From Home Customer Support Representative
- Work From Home Sales & Service Representative
- Technical Support & Service Representative
Their general and technical requirements are quite specific, so you should definitely check those out. http://careers.convergysworkathome.com/requirements.php
Convergys maintains a heavy social media presence. They even post new job opportunities on them.
Convergys on LinkedIn
Convergys on Twitter
Convergys on Facebook
They even have a YouTube channel - Convergys on YouTube