Several years ago I had a bookmarklet that would let me jump from an Amazon book page to the catalog page on the Columbus Metropolitan Library website. It was then a simple matter of clicking the reserve button to add the book to my reserve list.  A while back the library changed their system and I never got round to updating the bookmark,but drag this CML Link to your favourites bar and you too can have the same functionality.  If you are not using CML’s system the link is pretty easy to change so you may be able to work it out yourself. Alternatively try using Jon Udell’s Library Bookmark Generator page that got me started in rebuilding this link.