I too love link blogs. Reflecting on the three methods of writing outlined:

Do I write my article as a brand new post that gives the impression I thought of something in a vacuum? Do I write a normal post and link to the article/tweet that inspired me inline? Do I do a full block quote that shows off what idea got me going and write from there?

I feel I find myself wondering which link to reference. More recently, I have taken to referring to many of my own bookmarks. Although this is useful for my own thinking, I wonder if it impeds readers?
H/T Chris Aldrich