BookkooB Search: Searches a webpage for ISBNs and shows price details from UK or US online stores.
Bookmarklets: Information on Bookmarklets and a collection for download.
Bookmarklets - Browser Power: Collection of bookmarklets and instructions on how to write them.
Bookmarklets for Opera: Several downloads for the Opera Web browser.
Centricle: Favelets: Personal collection of bookmarklets for Web development and search engines.
Creating a Bookmarklet: Basic introduction to utility browser scripts.
Creating Bookmarklets: JavaScript programming tutorial explaining how to create bookmarklets.
Jalarie: BookMarklets: Several samples and a bookmarklet editor.
LibraryLookup: Tools for looking up catalog records from book-related sites.
Sam-I-Am.com: Bookmarklets: Sample tools for download.
Squarefree Bookmarklets: Information, resources, and several downloads.
WorldTimZone Bookmarklets: A variety of bookmarklets including search engine, web development, and religion-related ones.