Deblur Blurred Images
Although blurred photographs cannot be brought to clear focus again, but they can be nevertheless improved by using a mathematical technique called deconvolution. The software capable of doing so are commercial and expensive, and hence not an option for individual users or amateur photographers. Luckily, there is a free alternative as well.
Unshake is a free-for-private-use software that can deblur your photos with reasonably good outputs. It is Java-based hence multi-platform (Windows, Mac OS X, Linux). It is also portable.