If you are now using Internet Explorer, you can convert any bookmarks you had in Netscape, into the equivalent set of folders in Favorites, and visa versa. The organization of Favorites in IE 3.0 is quite good, and IE4 is even better. Folders can be created and Favorites can be moved around between them. The big problem for systems with low memory is that Favorites take up far more hard disk space than the equivalent set of bookmarks. A bookmark system has only one file which includes folders and bookmarks, and it just gets bigger.
Favorites has one small file for every bookmark.
Lots of tiny files tie up lots of hard disc sectors, losing lots of useful space on the disc. If this becomes a problem, move your Favorites file to a floppy or zip drive. It is a small, stable, stand alone program which does its job simply and efficiently, but it needed a change in how I set up each bookmark. When you have a good folder system you don't worry too much about assigning keywords to bookmarks. Search engines go in the Search folder, Rock Music goes in the Music folder.