HEATKEYS

Diigo Groups provides a ground-breaking collaborative research and learning tool that allows any group of people to pool their findings through group bookmarks, highlights, sticky notes, and forum.

StumbleUpon is a discovery engine that finds the best of the web, recommended just for you.

WebOxi

U.S. Geological Survey Coastal and Marince Geoscience Data System web site for finding USGS avaialble data.

FLI catalyzes, supports, and disseminates research on questions at the foundations of physics and cosmology, particularly new frontiers and innovative ideas integral to a deep understanding of reality, but unlikely to be supported by conventional fun...

Angelfire is a great place to build and host a website, with free and paid hosting packages. Use Angelfire

The Verge is the ultimate source for gadget and technology news and reviews. The site launches Fall 2011. Don

Alexa provides information about websites including Top Sites, Internet Traffic Stats and Metrics, Related Links, Online Reviews Contact Information and Search Analytics for SEM and SEO optimization. The Alexa Toolbar is a browser add-on that shows d...

Easily find more sites like those you like. Similar Sites helps you find related sites and alternatives based on community recommendations and computer analysis.

Academia.edu helps academics follow the latest research.

StatsCrop - a web service that lets you explore any website informations and its history, understand your competitor