What hildea said. As you see, ALL the keywords you are interested in are ALREADY in the category name, which is logically associated with EVERY site there, including yours.
Now, you have noticed that some search engine, somewhere out there, DOESN'T use all the ODP information we are ALREADY giving them. That is true. But it would be incredibly foolish and futile of us to try to compensate for the information in one database field (category title) they aren't using, by manually duplicating the same information 3.5 million times in another field (website description) THAT THEY AREN'T USING EITHER!
You think the SEs could make better use of the information we're already giving them? So do I. I hope for all our sakes that Teoma's challenge is robust enough to challenge, say, Google to strengthen their "theming" algorithm using our category names...and that Teoma is clever enough to figure out how big an advantage ODP's data is to google, and to incorporate it into their own work.
But asking us to hand-keyword-stuff all our entries to overcome deficiencies in each of 2 or 3 major search engines is ... too much. And asking us to stuff just YOUR entry ... you could get an editor removed for showing favoritism like that.