U.S. Hospital Social Media List Includes More Than 600 Hospitals

280 YouTube Channels
382 Facebook pages
470 Twitter Accounts
82 Blogs

Twitter is the easiest and blogs are the most difficult and time-consuming social media channel, respectively. This explains the difference in numbers to some extent - 470 Twitter Accounts vs. only 82 Blogs.

References:

Hospital Social Media List Update. Found In Cache.
http://ebennett.org/hsnl_03_28_10
Map of U.S. Hospitals with Official Social Media Accounts

Image source: OpenClipArt.org, public domain.