i do have a blog -
http://blogs.webpronews.com - but i don't make 30 a day.
my latest post took me about 1/2 hour to write and another 20 or minutes used "researching" the topic. so unless i'm spending my entire day - minus sleep - i'll be hard pressed to see 20 posts a day, let alone 30.
as for endgadget, don't they have a number of contributors? if you are really shooting for that number, i'd recommend getting some contributors.