UnearthedBookmarks for Mac

From Unearthed Java:

There's a lot of websites out there. Keeping track of the ones you are interested in can be difficult; especially those sites that don't update very often. UnearthedBookmarks allows you to keep track of the sites you are interested in.

UnearthedBookmarks keeps track of the web pages that you tell it to monitor. The program will navigate to the site for you, and it will determine the last time it was updated (or the date the page is set to expire if a last modified date is unavailable). Since every site you visit may not necessarily maintain any date information, UnearthedBookmarks also gets the title for the page you bookmarked (many times, the title will have changed and you can go from there).

UnearthedBookmarks is also designed to deal with your firewall proxy server (if you use one). It allows you to define the server, the port, your user ID and password. All of the information (minus your password) is stored in an XML file and read into the program. This allows you to define multiple proxy servers (great for laptop users).