I would suggest that tagging these articles would add a great deal of value. The chronological list is good, but adding tags or categories of some sort would make it easier to navigate.
Possibly part of the problem was that I was looking at it from a "general startup" point of view (the narrowing down to early founders is recent). Perhaps with a narrower focus, tags will make sense.
* Formation
* Fundraising
* Sales
* Marketing
* Getting Traction
* Failure
* Negotiation
* Hiring
* Firing
* Partnerships
http://www.delicious.com/help/api#posts_suggest
For your opinion pieces, you might have to use the original story's URL because that's more likely to have been bookmarked.
Thanks for making this.