For an incredible on-line experience, go to ''the space where girls rule the place'' the Girl's World Clubhouse. This home page is hopping, and you don't have to wear a dress-this place is for girls of the '90s! There is so much to do, you could stay for days. Make new friends, get to know women with dynamite careers, find directions for neat stuff you can make and lots more! Girls are in the Clubhouse, waiting for you to come share your thoughts on a million different subjects. Type in your opinion on a hot topic, and then take a peek at the Clubhouse girls' secret diaries. Give a little advice-what would you do if it were you? So go, girl, and have a blast at the place "where it's cool to be a girl!"

Enter the world of The Mysterious and Unexplained and search for mysterious creatures, examine unexplained powers and investigate legends of ancient lost lands. This Web site is dedicated to all that is mysterious and unexplained. It can be your launching pad for a serious investigation of the unknown. Are you fascinated by Bigfoot or the Loch Ness Monster? Do you wonder why Stonehenge or the Sphinx were built? Does the idea of lost fortunes in buried treasure tantalize you? Have you ever considered whether Plato's tale of Atlantis is true? Do you think we're alone in the universe, or are there other intelligent beings out there? What do you think? If you have an opinion, a theory or further evidence, you are encouraged to submit them.

Hop on a flight to Kobe on your favorite Web browser and visit students from Akatsukayama High School. Tour the school, learn about Kobe, read and respond to messages and check out what these students are up to. Be sure to click on the what's new link and to sign the guestbook.

Is your school's Web page really cool? Nominate it, or any other neat site. Maybe your school will be the next 4Kids Cool School Site!

Listen to the Mean Pumpkin.

When you know the answers to these questions, go to 4Kids Detective!. Here are the questions:

• In which area is Akatsuka-yama High School located?
  
• What is everyone searching for on mysterious Oak Island?
  
• Who are the hosts of the Girl's On-line Clubhouse?
  

Dear Amy:Why do so many sites require Netscape? What is Netscape? --Carem, El Paso, TX

Dear Carem: Netscape is an Internet browser. There are others like Mosaic, Spyglass and Explorer. Currently, Netscape is the one most people use. Some Web sites require the latest version of Netscape because it allows them to do the things that other browsers can't. For example, the Cells Alive site (this issue) has animated gifs, which are like little movies. If you don't use Netscape 2.0 or another browser that supports animated gifs, like Explorer 3.0, you can still view the site, but not the animations. To download a free copy, go to Netscape.

Dear Daryll: When you click on a sound link, you ask the server computer to send you a sound file. They can be really huge. The Web site should tell you the size of the sound file right next to the link. If you use a modem, choose sound files smaller than 200K. Once you get the file, you will need a helper application like Sound Machine for Mac or WHAM for PCs. Many Web sites that include sounds have links to places where you can download the helper application for free. Shareware applications that I use are: Sound Machine for Mac, or WHAM for Windows.