I always assumed that Techmeme was some kind of algorithm that Gabe had built to sort through a universe of rss feeds he pulls into his system. I think that's certainly the base of the service. We can only guess what the algorithm is, but it certainly has to do with the weight of the content source (maybe something as simple as the leaderboard). And it also has to do with the number of authoritative content sources linking to the post/story. Beyond that, your guess is as good as mine.
But this week Techmeme launched something that suggests there is a lot more editorial selection in Techmeme than I previously thought. Here's a Techmeme link to the post I wrote yesterday.
Look at that last link that says "Thanks: atul". That's a link to a twitter message to @techmeme from Atul. So what happened here was Atul saw the post and thought it should be on Techmeme and twittered this:
I somehow missed the post Gabe wrote on Wednesday of this week announcing the service but I think this is a great idea. There are always going to be great posts that are outside of the universe of rss feeds that Techmeme follows. And now, the readers of Techmeme who don't blog get a role in the decision about what gets up there.
I think this is a great move by Gabe and it also produces a great Twitter search feed of links people are submitting. Sweet.