Have seen most of my clients sites receive a big bump upwards...Finally weeks of link building efforts paying off. Too bad that Yahoo's market share in China where most of my clients are located is just about 2% according to the latest reports
One of my sites consistently got around 10 to 12 hits from Yahoo per day, now it has over 30 in the last six hours, definitely something has changed since the start of the week.
After Yahoo update many sites have lost their ranking including some of mine. Other of my sites gained in the ranking even though the technique I have used on all the sites was exactly the same. Dont' know why it would favor some sites and penalize the others. Maybe it is due to the algorithm.