Jack-of-all-trades Research Desk ($34.95) has research tools including an organizational tree with subdirectories (called layers), stops pop-ups, lets you annotate pages, and uses IE's Internet Options for control over security and other options. Help pops up as needed and actually disappears without your intervention; other little touches are equally welcome, such as the ability to lock the browser to prevent accidental page changes. The layer metaphor could throw some people, but Research Desk is a powerful tool worth learning.