Here is search logs of 650,000 AOL users. It's very interesting to view search history of particular person and analyze his personality. Let's do it together! Read more about AOL search database scandal or view research papers on web searching.
Wavelets and Signal Processing Package for Matlab
[free] WaveLab is a library of MATLAB routines for wavelet analysis, wavelet-packet analysis, cosine-packet analysis and matching pursuit.