Can anyone tell me how much time it takes to reach $2500 per month with 8 blogs?Also how much time should be spent per day to maintain that kind of income?
This solely depends on the content your blog has and how much unique is the content... its not the quantity some people have just one blog... and they are making 500-1000 you need to put quality posts in your blog...
its too hard to reach at that level amount ... u need to work very hard .. "how much time should be spent per day ???? " max time u can spent will be the needful