Early this morning, the space shuttle Endeavor lifted off on its final flight from the Kennedy Space Center at 8:56 a.m. EDT. The launch was covered live via NASA TV, and I'm watching the flight live and streaming as we speak. Check it out at NASA TV.

More amazing live events on the Web

• The Decorah Eagles: live Eagle cam on the Web
• Where to watch the NCAA basketball tournament for free on the Web
• Live Flight Tracking
• Miss the Royal Wedding? No worries; here's where to catch the replay

Are you concerned about how much information is out there for anyone to see via your Facebook profile?

Let me put this another way. Do you actually know how much information is out there for public consumption, via your Facebook profile?

Quite a bit actually, if your security settings are set to the default "Everyone" setting. Anyone who searches the Web, anywhere in the world, can see your information: phone numbers, addresses, photos, even who your friends are and what you're saying in your updates. If you would like to make your Facebook information inaccessible to search, you'll want to read How to Block Searches Of Your Facebook Profile, a quick informational tutorial on how to guard yourself on this popular social networking site.

More on Web privacy

• A Practical Guide to Kids Safety Online: Don't assume that your children know how to stay safe on the Web! Most likely, they've already given away sensitive information. Use this article as a conversation starter.
• How to Avoid Dangerous Sites on the Web: There are a few common sense guidelines you can follow to ensure that you stay away from questionable sites that seek to harm you or your computer.

image courtesy sxc.hu

Facebook, the world's most popular social networking site, does have a moderately good internal search tool that you can use to find people and groups. However, there are a couple of interesting third party Facebook search tools that are worth a try:

• Openbook: This search tool looks at Facebook statuses, throughout the entire network. Only people whose security settings are not set to "Friends Only" are included in this tool; surprisingly, from the point of view of being safe online, this includes a LOT. (Not sure why this is something you should be concerned about? Read Protect your Facebook privacy with ReclaimPrivacy.org.)
• Booshaka: Find what's currently being shared across Facebook, and check various social rankings (yourself, your friends, groups, etc.).
• Kurrently: Brings back real-time results for both Twitter and Facebook (you can choose one or the other or both), brings back links, images, videos, etc. for any keyword or phrase you might type in. You can also choose how fast you want the results to be whizzing by you; since they are delivered in real time, it can get going pretty quickly.

Do you have a favorite Facebook search tool? Please share in the comments.

More about Facebook:

• Three easy ways to search for people on Facebook: Facebook is one of the best places on the Web to find people, and this includes addresses and phone numbers.
• How to Unblock Facebook Safely, Legally, and Responsibly: Sometimes, for various reasons, Facebook might be blocked. Here are a couple of ways you can get around that.
• Use Facebook to make a personalized phone directory: Make a detailed phone directory for all your Facebook friends in a matter of minutes.
• Profile of Facebook Founder Mark Zuckerberg: Learn more about the man behind the world's largest social networking site.

If you have Firefox installed as your Web browser of choice, you might (or might not) be aware of the many handy-dandy keyboard shortcuts that are available to you. Here are just a few that I use on a daily basis to save some time:

• Add Bookmarks: Ctrl + D
• History: Ctrl + H
• Page Source: Ctrl + U
• Print: Ctrl + P
• Copy: Ctrl + C
• Cut: Ctrl + X
• Text Size Decrease: Ctrl + -
• Text Size Increase: Ctrl + +
• Find in This Page: Ctrl + F
• Bookmark All Pages: Ctrl + Shift + D
• Open up a new tab: Ctrl+T
• Organize all bookmarks: Ctrl+Shift +B

What are some Firefox keyboard shortcuts that you like to use? Please share in the comments.

More about Firefox

Ten Great Firefox Extensions: Firefox extensions "are small add-ons that add new functionality to Mozilla applications. They can add anything from a toolbar button to a completely new feature. They allow the application to be customized to fit the personal needs of each user if they need additional features, while minimizing the size of the application itself" (from the official Firefox Extensions site). Here are my picks for the Top Ten Best Firefox Extensions.