I tired google accelerator and I personally don't really like it. Doesn't it use some RAM? I used it for a day and it didn't really work for me. The speed was still the same......sadly......I don't believe you can "accelerate" the internet. It depends on the internet you pay for monthly or the one you are leeching off of. Correct me if I am wrong.... =)
I stopped trying those accelerators along time ago as well. There are only a few ways that a piece of software can speed up the internet and they all have to do with your ISP. Beyond that, they are just a waste of system resources, saving every page you look at for recaching or using different network paths. I've always tried to keep an internet connection that doesn't put me in that kind of bind.