To get 10 free Drupal sites on Windows Azure follow these easy steps.
If you do not already have a Windows Azure account sign up for a free trial here:
http://www.windowsazure.com/en-us/pricing/free-trial/
Once you have an account, open up the management console at: https://manage.windowsazure.com
1. In the lower left corner click +NEW
2. Select COMPUTE->WEBSITE->FROM GALLERY
3. Acquia Drupal 7 should be at the top and selected, if it is not, Select CONTENTMGMT on the left then Acquia Drupal 7. click the -> arrow in the lower right.
4. Enter the URL (name) of your web site. (note custom domains are available on the Shared and Reserved instances), Select a new or existing database, a region and a Subscription for your Drupal instance. Then click the -> arrow in the lower right.
5. If you selected a new MySQL DB, be sure that you tick the box in the lower left corner for ClearDBs terms and conditions. Otherwise, enter the appropriate database information the click the Tick mark in the lower right.
Windows Azure will now provision your database and Acquia Drupal web site. Once the dashboard shows the site is running, click the hyperlink on the right and go through the standard Drupal configuration process.