Stores Web pages, images, documents, notes, and much more in your own Knowledge Base (a 'knowledge base' is a database filled with 'knowledge' like the things mentioned above). Your Personal Knowledge Base is organized into categories that you create. Each item you add can have keywords associated with it and a quick summary. Later, you can look for items by opening up their category andviewing all of the items in it, or by using PKB's powerful search facilities.