Free online promo, either it sucks or I suck at it--veinglory

I am half way through May. First here is what I have done. Suggestions for more things to try very welcome. In fact desperately needed.
Now some people may Google the book. But whenever I could give a link it was
to my blog, which was up 'til now pretty inactive with less than ten hits a day. This is what I have done so far:
Feature on my blog, Spottt ad, cover swap with Shelley Munro, joined entrecard, joined AuthorsDen, updated DeviantArt page, joined Red Room, promoted at the AbsoluteWrite forum in various ways, put a coverspot on the main EREC website, featured the book on my own website index page, listed at bloggitizer and blogdirectory.org, changed avatar and sig line at romance divas, posted to the homopromo yahoogroup, featured the book on my librarything page.Here are the unique visitors to my blog in May:
1) entrecard.com 253, entrecard.s3.amazonaws.com 183--This ad system is based partially on traffic exchange. So this looks good but I don't know.
2) blogger.com 62
3) erecsite.com 33
4) (direct) 26
5) podpeep.blogspot.com 10
6) spottt.com 9
7) wwforums.com 7--weird, I haven't visited this site in months
9) google 11
10) catauniversity.com 5
11) dietpulpit.com 5 (via entrecard)
12) blogdirectory.org.uk 4 (found via entrecard)
13) samhainpublishing.com 4
14) shelleymunro.com 4 (cover exchange)
15) absolutewrite.com 3 (probably my new sig line)
16) emilyveinglory.livejournal.com 3
17) gadgets.gotoscience.com 2
18) monicajackson.com 2
19) typepad.com 2
20) virtualme.110mb.com 2 ...then a bunch that gave 1 click, mainly blogs I found via entrecard and some old blog directories I joined ages ago.
My conclusion so far is as that I haven't achieved much. If you reckon maybe one sale for every hundred clicks that would mean maybe 6 sales. But traffic exchange clicks generally have to be discounted so that would suggest maybe 3. We'll see at the end of the month. The goal for it to be worthwhile is 20. So I need a few good ideas here!