Technorati puzzle

I was at Blostreams Salon at Tapped In yesterday. Blogstreams Salon is a monthly event where people meet to discuss and explore blogs. We talked a bit about Technorati and the writingmatrix project. The idea behind writingmatrix is to get in touch with people with similar interests across the world by tagging posts writingmatrix and then searching for blogs of interest using Technorati (you simply enter 'writingmatrix' in the search box, click on the arrow next to the text box and choose 'in tags' to find all blog posts with writingmatrix tags). Technorati generates a list from the most recent posts on. You'll find many students from Venezuela there.
When checking the list yesterday, we found out that it doesn't include some of the writingmatrix blogs despite tagging - we wondered whether the reason for this could be that the missing blogs aren't configured at sending pings (under settings/publishing). 5 Roštilj student blogs are on the Technorati writingmatrix (in tags) hit list (Suzana, Igor, Robert, Dušan, Aleš) and 4 of them are left out (Matej, Bogdan, Aleksander, Robert Č - Robert hasn't really posted anything yet, Matej misspelled the tag (his pin configuration is set at yes, has already corrected his tags but is not yet on the list), Aleksander and Bogdan tagged their posts correctly but are not included – I hope we'll soon understand why.