If you are looking for a new service provider, or just want to know what your options are in your area, check out this tool from cnet.com.
What The Test Does
You will be asked to enter your area code and then your ISP.
When you click "Go" during the test, a 100k file is downloaded from the CNET servers, which will calculate your bandwidth from the CNET Web Services site. Your bandwidth rate may be affected by the following factors: being located outside of the United States, performing other downloads and this test simultaneously, or executing programs that use your bandwidth to monitor other resources. Web Services does not currently list Internet access services outside of the United States. Therefore, area codes are optional for international users.