Ok, so I have a tumblr blog, its url is my bhw username you can go check it out. currently I have 2k uv/day 5k pv/day 12k followers and keep growing, Do you think this is the right time for me to roll out ads? or I should wait? Does it effects your follower growth speed? anyone has experience? please let me know also, give me some suggestions for my blog! thanks!