Bits and Bytes

1. Sign into your Google Calendar and click on Settings.
2. Click on the name of the Calendar you want to embed into your blog sidebar.
3. Scroll down to Embed this Calender and click on Customize the color, size, & other options
4. Change Default view to agenda, change width to 230 pixels (you may need to adjust this width depending on your blog sidebar) and untick any calendars you don’t want displayed when the calendar is embedded in your blog sidebar. Now copy the embed code.
5. In your blog dashboard click on Design > Widgets and add a new text widget to your Current Widgets by clicking on Add next to Text widget in the Available Widget area.
6. Click on Edit on the Text widget you just added to the Current Widget area. Now paste the HTML code for the calendar into the Text Widget and click on Change. Finally click on Save Changes.
7. When you view your blog you should see your Google Calendar embedded in your blog sidebar.

Remember here is how to use Google Calendar and this post explains how to embed on a page.