These ranged from his change.gov and recovery.gov websites to the Blackberry battle to tech problems in the White House to Obama's Technology Agenda to the newly revamped White House website and blog.
I subscribed to the White House blog's rss feed on 1/20. In addition to reading the posts, I also paid attention to how many other subscribers there were. At the end of the first week, there were about 800 subscribers in Bloglines, and about 3,000 in Google Reader. As of 2/2, it's up to 1,100+ Bloglines and 16,000+ Google Reader.
This is out of a country of 300 million people - I'm surprised it's so low*.
I think it's great that the government is putting effort into reaching people in new ways, so people can get the information the way they want to be reached. But at what point does it become worth it? These numbers don't take into account people that use other rss readers or actually visit the website, but they do seem low.
Regardless, leading by example is a good thing - if the White House is taking bloggery seriously, then perhaps other parts of the government will also be making information available quicker and easier via technology. The Library of Congress blog predates Obama (191 Blogline/241 Google Reader subscribers), and it has a flickr stream too (~90/226 subscribers). Also, iLibrarian recently pointed to a recap of the Best Government Uses of Web Technology, and that's interesting reading.
These web 2.0 communication channels are now an integrated fact of life for many people, so it makes me feel better that our government is deliberately addressing it instead of trying to ignore it.
*My library's blog isn't much better - out a of a town of about 32,000, we've got 3 Bloglines and 4 Google Reader subscribers (we average over 700 page visits a month).