BTW- Here's an option for the digital resources assignment, even though it doesn't talk about it on the assignment page: You can count an educational weblog or an rss/atom feed as one of your digital resources. Why not? Some of my best digital resources that I use weekly, even daily, as a teacher are weblogs from really great sources that have really good ideas.
Remember that you'll have to establish the credibility of the blog. Normally website credibility is established when you look for things like government sites, non-profit organization sites, sites by trusted authorities, etc. Weblogs are different because most weblogs are run by normal people. So I'm thinking you could probably justify a blog as a good digital resource if you can explain to me why:
1) It is useful
2) you trust the ideas from this person
3) you would read it often enough to gain value from it
4) you would use the source as a teacher
You might also look for whether the person quotes other sources or is quoted himself, and what kinds of conversation does he/she have on the blog? A blog that is widely read by many people and has many people commenting on it is probably a good blog .
I know what you're thinking, and no, the Dilbert feed I showed you does not count as an educational resource! :-)
Have fun exploring! There are many good thinkers out there and many of them have weblogs!