Are you still getting a lot of hits from Reddit, or has it tapered off?
The effect was very short-lived. Its essentially over. I've moved down to the 2nd page now.
1/03/2010 1400 from reddit + 192 other.
1/04/2010 87 from reddit + 104 other.
1/05/2010 14 from reddit + 51 other.
The "other" includes folks who clicked on a 2nd page of the blog after linking to the first page from reddit.
After observing reddit for awhile I think the serious reddit junkies get their rush from clicking on the "latest new stuff", vicarious jollies from being "in the flow", like a dog with his head stuck out the window of a pickup truck on the freeway.
I don't think those clicks are worth much. Reddit is short-attention-span theater.
Maybe you'll start getting a lot of hits from Facebook soon. 
Unlikely. I saw the facebook page somebody just started, and I see he has a link to my blog. My experience is that when somebody puts a link on some blog I get 10 or 20 hits. And that's for a blog where there is some established audience. This guy's facebook page is brand new, so there is no established audience. Yet another link from somewhere is always welcome of course.