Research
Basic algorithms by Steven Skiena provides algorithm implementations for some fundamental combinatorial problems.
NP problem list edited by Pierluigi Crescenzi and Viggo Kann. Always check this out to see if your problem is NP-Complete.
Mathematics glossary. Look it up in case you saw an unfamiliar mathematics term. Also try Wiki.
Bioinformaics review references list review papers by year.
Bioinformatics journal paper collection. Papers are organized into tens of subareas.
Latex math symbol prepared by L. Kocbach and amsmath guide (pdf) for the amsmath package.
Latex graphics. Graphics can be a tricky business in latex.
CS bibliographies. Search for bibtex entries.
CS conference list compiled by Erik Demaine is updated constantly.
Entertainment
To watch or not. Get the opinions of your fellow movie lovers from IMDB.
Listen to what. Classical CD buying guide.
Dpreview gives excellent reviews for photography gear, mainly for digital cameras.
Do not buy a Canon lens without reading Canon lenses reviews first.
Airfare prediction tries to predict the airfare. Test it now!
On The Road. Reviews for anything about travel.
Citysearch lists all popular spots in your city. Never worry about the next dinner place.
After all, we have Google. What else do we need?