Many entrepreneurs, activists, and marketers are leveraging the social web for positive change. In the process and by its very nature, they are giving each of us the tools to change the world and make it a better place. Here are 10 worth exploring.

if we spent our entire day dwelling on all the cruelty and injustice in the world, most of us would wind up in the fetal position under the covers and not get anything done. There are those that take it to extremes, and never watch the news for this very

The Milky Way - our home galaxy - is twice as thick as we thought it was, Australian astrophysicists say. Professor Bryan Gaensler from the University of Sydney and his team have found that the enormous spiral-shaped collection of gas and stars is 12,000

New Jersey enacted legislation on Thursday banning some convicted sex offenders from using the Internet. No federal law restricts sex offenders' use of the Internet, and Florida and Nevada are the only other states to impose such restrictions.

About half of Americans believe in ghosts, according to a 2003 Harris poll.

Next time you lose your car keys and enlist the family to help you search, try a little experiment. After your spouse searches an area, go and look in the same place. It will likely feel strange, even irritating to both of you - and that's because you may

NEW YORK (AP) -- Nearly a third of online teens say they have been harassed on the Internet, with girls and participants of social-networking sites more likely to be targets, a study finds. However, two-thirds of teens say bullying