Userscripts.org

This script toggles display of the top and side bars of Google Calendar with click or I U O G V key.

Collapse the header and the navigation bar by clicking triangle icon on top or left.

Adds buttons to collapse the sidebar (containing the list of calendars) and the search bar (containing the Google logo and calendar search).

Fix Google Calendar so that long event names will text wrap on the calendar.

Hide search and navigation bar in popular Google webapps: Gmail, Calendar, Reader, Groups, Translate, and Google+. Reclaim vertical screen space. Toggle button allows to bring back Google bars with just one click.

The display of the navigation bar will be switched.

Shows the duration of each event.

Shows line and time display at current time on day view, week view and custom view.

Makes the calendar bigger.

Replaces the default calendar link in Evite invitations with a Google Calendar link instead.

I'm loving the new Google Style. All that remains is the mini-mode toggler.

Integrates your Google Calendar in to your Personal Gmail/Google Apps account. Now works with Google Chrome too.

Adds Google Calendar buttons to ebay article pages

Old-fashioned Google top and side bars and much more! Gives you a clean, crisp and soothing blue and white Google stripped of all link-tracking with none of the Christmas tree look of the 2011/2012 redesign(s). Restores missing sidebar, turns Goog...

Adds tooltips to events, allowing to see the entire title in tooltip.

This script loads the Google calendar seamlessly into the gmail interface below the inbox (rather than the sidebar) using a gmail native navbox.

Add Facebook events to your Google Calendar effortlessly. (Last updated: July 12th 2008)

Add an "Add to Google Calendar" link to Evite

Connect Toodledo Tasks with Google Docs, Evernote, Google Mail, Microsoft Office Live, Slideshare.net, Scribd.com, Youtube, Evernote and Dropbox!

Attaches a simple icon on each building which show level and if upgradeable

Moves your calendar with the mousewheel.

Simple script which you can change Google Calendar Today's Color with. This for the month view.

Removes scrollbars and displays entire schedule.

Displays a Google Calendar summary in a nav module in Gmail.

The script is to be used in conjunction with "Gmail - Seamless Integration (Google Calendar, Reader, Notebook, etc...) with Collapsible Inbox for Standard GMail and GMail Apps" to clean up the iframe contents.

Add keyboard navigation for google calendar

Embeds Google Calendar to Gmail by adding a "Calendar" link

Creates an "Add to Google Calendar" link from Yahoo! Groups calendar link.

Adds a link to add future movies to GCal or YCal.

A really basic TODO list for Google Calendar