On July 20th, Yahoo started a major algo update. Since then, DigitalPoint Forum members also reports a Massive jump in yahoo BL. In the past, Yahoo! has always updated back links on a more frequent basis (possibly daily). I find it a little odd that the DigitalPoint forum members, who use the DigitalPoint forum tools, (Yahoo! API) to track backlinks at Yahoo reported an increase in back links shortly after we reported that Yahoo!'s Link Domain Command Funky. When conducting searches using the API, the results for that command we much lower then with the site itself. Maybe they are related, I did report this to Yahoo about a month ago.