I was browsing through the Calibre forums earlier and found my way to the sub-section on plug-ins written for the program. I downloaded several that I'm going to use a lot. Here are some of the ones I found that might be of interest to the Calibre users here:
[GUI Plugin] Manage SeriesThis plugin offers a GUI allowing you to quickly create and edit your series column values for your selected books using either drag/drop or keyboard shortcuts. With the current deprecation of various Calibre series metadata sources (except when using the Goodreads metadata plugin) users may find the need for more manual editing of their series information.
[GUI Plugin] Book SyncThis simple plugin allows you to add books to a special list in Calibre which is automatically sent to your ereader device the next time it is connected. This is a very convenient way to flag books for your device as you add/process/search for them in your workflow, without requiring your device connected at the time.
[GUI Plugin] Kindle Collections 1.6.3 - 30 May 2011This Calibre plugin allows you to manage your Kindle collections and settings.
[GUI Plugin] Reading ListThis plugin is for a number of users who have requested a "Reading List" ability for their library, allowing them to keep track of which books they would like to read next and in which order.
You can have multiple lists (e.g. if keeping track for different users or genres). The list is viewable in the main library view sorted in correct order, for convenience with sending to your device.
[GUI Plugin] Plugin UpdaterThis plugin offers a GUI to make it easier for Calibre users to download and install new plugins or updates for any of the user-developed plugins that are found within this subforum. One to rule them all, so to speak...
[GUI Plugin] Find DuplicatesThis plugin will help you to identify duplicate authors, titles and formats in your Calibre library.
Anyone that is interested may download these and other plug-ins at this page:
http://www.mobileread.com/forums/forumdisplay.php?f=237Mike
Who is not the author of any product mentioned here, or has any other connection to them.