Raster to Vector

When you can't scale up your raster images, you can convert raster to vector for better quality and unlimited scalibility. Since, vector files are based on mathematical distance between two points. You get the opportunity to scale up to whatever extent you wish. For more :
http://www.vectorgraphicsindia.com/
http://www.vectorgraphicsindia.com/raster-to-vector-conversion-service/