A comprehensive list. I can only think of two other obvious things that always seem to hit Techmeme.
1) Contrarian views. Sometimes these are great as a counterpoint to an article already on Techmeme. Other times these are god-awful nonsense simply written to drive pageviews and get Techmeme headlines.
2) Write a post that mentions Techmeme. The more often you mention Techmeme, the better. And make all the mentions hyperlinked.