Are you in an apartment complex? If so, pay attention to the time of day that you are able to browse faster than other times. What a lot of folks don't know, is that when you are on cable, you are not on a dedicated highway. You are actually sharing bandwith with other folks in the area. DSL (dedicated subscriber line) is a better way to assure that you get dedicated badwidth. Now I know you said that other sites are fast, but you might be just browsing, so they will be fast. Don't expect AM to move as fast as other sites that do not facilitate user interaction. As for AM, depending on the time of day, it may move faster than other times, because most guys are at work (unless they are like me, and access AM from work, lol) or school. I know AM is using load balancers which helps to route users to the correct server based on the load that the other servers are suing or how many users are logged into the other servers. Another thing to consider, while you may have a 15mb line, you may not be actually getting or using that much bandwidth. Go to this website and test your up and down speed
Invalid Link Removed, on the right side you will see the link to test your speed.