TechNet Wiki Article Tag Search PowerShell Function is now available on the TechNet Gallery at: http://gallery.technet.microsoft.com/TechNet-Search-Articles-by-f71b7819

Features:
-Search for articles with one or multiple tags
-Script returns either a collection of article metadata matching specified tag(s) or article count matching specified tag(s)
-Full help with examples and usage including how to export search results to a CSV file within the function and on the TechNet Gallery post

Please let us know what you think and if he can make the function better for your purposes.

Feel free to discuss or suggest updates to the Article Tag search function on the MS Technet Wiki Discussion Forum.