You can share photos and videos with your friends just by dragging them onto their photo. You can paste messages and photos to "the wall," as they call it. This is very much like a bulletin board for each member.

More than 60 million photos have been uploaded to Facebook, making it the leading site for pictures. You can browse them by keyword. We typed in "clouds" and got tons of beautiful cloud pictures, including sunsets, sunrises, etc. There were 1.7 million of them in all.

Flock, like the Firefox browser on which it is based, has tabbed browsing. Each site you visit is marked with a tab near the top of the screen. You can go back there simply by clicking on the tab. Unfortunately, the browser does not save those tabs when you close it. People have complained about this, and the programmers said they will probably fix it in the next version.

You can use Flock without being a member of Facebook or having a column of friends' photos along the left. You can have a column of news feeds, YouTube videos, or highlights that you marked from your e-mail or a Web site. There are many other choices.

A major complaint regarding Facebook is that your info can be used for mar  uld automatically add that info to your public profile, which might otherwise contain very little information about you. But in December there was a huge protest about this from 52,000 members of MoveOn.org, a 3.3 million-member organization, and Facebook managers responded by providing privacy options. Now, companies have to ask your permission before adding to your profile. You can, if you wish, ban every company so that you are never asked.

INTERNUTS

You can have the lyrics to many songs scroll by on the screen of your iPod or other music player by downloading them from any of several sites devoted to this. Here are a few we looked at: Mp3lyrics.org, lyricsdownload.com  and lyricsfreak.com. They were easy to use, and it was a treat to see the lyrics roll by as a song played. A lot of song lyrics are hard to understand when listening.

•  "iPod, the Missing Manual" by J.D. Biersdorfer; $20 from oreilly.com  or missingmanuals.com.

           This book told us an awful lot you can do with an iPod that neither we nor most other users know about. You can, for example, use it as a calendar, an address book and a world clock. You can add your own choice of artwork to songs, instead of just the album cover. If you have the new iPod Touch, you can even connect to the Web.

•  "Adobe Photoshop CS3 for Photographers, a Video Training Book" by Chris Orwig and Lynda.com; $50 from Peachpit.com.

           This is one of the most unusual books we've ever looked at -- part book, part program and packaged that way: half book, half box. Lynda.com is a maker of training programs and operates a Web site where you can access any of those programs for a fee. Three hours of free training sessions for Photoshop CS3 are packaged with this book. The buyer also gets one month of free access to more training sessions on this or any other subject Lynda.com covers, and there are hundreds. We've looked at many of them over the years and they're excellent.