Info Select: The Adaptable Personal Information Manager

Info Select is the award-winning Personal Information Manager that helps you manage all your daily random information and organize all your Internet data. The screen shows INFO SELECT's outlining approach that makes getting organized quick and easy. Just drag and drop your data into the categories you create. With full control over the level of detail displayed, you'll see the "big picture" more clearly and be better able to reach your goals.

Website Monitoring from Search Engine Watch:

WebSite-Watcher
http://www.aignes.com/
WebSite-Watcher allows you to monitor any number of websites for updates and changes with a minimum of time and online costs. When changes in a website are detected, WebSite-Watcher saves the last two versions to your hard disk and highlights all changes in the text.
Because WebSite-Watcher is a desktop utility, there is no risk that you might lose your page tracking should the company go out of business.
WebSite-Watcher is free to try for 30 days.  Registration is $29.95 for personal use, $99 for corporate use. Requires Win95/98/Me/NT4/2000/XP; a language pack supporting more than 20 languages is available.

WatchThatPage
http://www.watchthatpage.com/
WatchThatPage gives you several options for how you want to monitor the Internet. You can get all the new content collected in one email, or separated into several emails to sort the information on different topics or importance. You can receive all changes, or just changes that match keywords you specify. You can get daily updates, or customize the updates to the weekdays of your choice.
WatchThatPage also offers a notification service for webmasters. Your visitors will get email alerts whenever you add new content to your webpages.
WatchThatPage is web-based, and free to individual users.

TrackEngine
http://www.trackengine.com/
TrackEngine can alert you to specific events on any given webpage, using a process that's just slightly more complex than saving and managing bookmarks. At any time, you may sign in to TrackEngine and manage your bookmarks online. You may edit the tracking parameters of selected bookmarks, or delete bookmarks which you no longer need.
TrackEngine is web-based and free to individuals, with several pricing options for businesses.

InfoMinder
http://www.infominder.com/
Use  to consolidate your web site tracking into a single email digest. The digest groups and summarizes the changes in the sites you're tracking. And when you need to, you can click through to a version of any of those pages to see all the changes since your last visit, highlighted and marked by InfoMinder.

Notes Pilot is a handy notepad with tree-like structure support. Notes Pilot can be accessed from any Windows application.

Just select interesting information and drag-n-drop it into Notes Pilot. Program will save it automatically. Example...

For your convenience you can run Notes Pilot:
in the Internet Explorer as "Explorer bar" or "Toolbar";
in the Windows taskbar as "Toolbar".-