Thank you all for the information. I really appreciate it. I will be using my own Acer netbook computer at work. Where I work at my job doesn't have computers. I was thinking that I might use Virgin Mobile broadband2go.
Virgin Mobile broadband2go is a different beast than what those that responded to this thread were talking about. It is cellular based broadband whereas when you say "wireless internet" most people think of using a public WiFi hotspot.
Your netbook has a WiFi adapter built-in that will allow you to connect to hotspots in the near vicinity. There are both "open" and "secure" hotspots meaning some require a key (similar to a password) to connect to while others allow anyone to connect. In addition, some hotspots are free (no cost) while others require you to pay to access. Free, open hotspots are probably the most dangerous to connect to as they can be setup by people specifically looking to illegally access your computer.
The Broadband2Go is essentially a cell phone with no earpiece or mouthpiece. It's a USB dongle that plugs into your computer and allows you to connect to the Sprint cellular network to access the internet. It requires a monthly subscription cost.
There are pluses and minuses to each. Which is best for you is something you need to decide. First question I would ask is: Does your work have a network with a hotspot setup for you to access? (My guess is no since you say they don't use computers there.) If not, you will need to find out if there is an available hotspot close enough for you to connect to and use. If there isn't then the Broadband2Go option may be best but you would need to determine if your workplace is in a Sprint cellular service area. If it isn't, then you won't be able to use it at your workplace.