Raster to Vector

I have a raster (.jpg) B&W line art logo I want to convert to vector, is there an application I can use to convert it to a vector image or do I have to redraw it by hand?

I did a google search, found this:

http://www.trixsystems.com/

Adobe has a program designed especially for that task and it’s called Streamline. You can run a search for it on google.