About a week ago, I was ranking in the top 30 for 20+ keywords. Now the only keywords I'm ranking in the top 10 are my brand keywords. For example, if the url were ukdance.com. I'm now only ranking in the top 10 for uk dance, ukdance, danceuk and dance uk. The other 20+ keywords are nowhere to be seen in the top 100. I added about 300 backlinks a month to two months ago.