Not much.

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100 Subs - √ (July 31, 2012)
150 Subs - √ (December 5, 2012)
200 Subs - √ (January 30, 2013)
250 Subs - √ (March 21, 2013)
500 Subs - √ (July 3, 2013)
750 Subs -
1000 Subs -

Partner as of Feb 1, 2013!