Well I've been listed on Yahoo! Canada for almost 24 hours. I looked through my log files and not a single referral from Yahoo! Does anyone know at least partial scoop on the ranking algo. I thought I understood it somewhat - obviously not. Is Yahoo! case sensitive?
When you get added to Yahoo, your listing is available in the category right away, but it won't show up in search results for a few days. Give it 4-5 days, and you should begin to see traffic after they refresh.
Are the keywords you are searching on included in your title and description?
Are a good portion of the listings above you category matches? You can't do much about the cat matches, but you can try to get your listing changed if the editor wrote a bad one that doesn't include your keywords. This is alot easier to do if it was a paid submission.