Everyday millions of blogs are launched and everyday millions of blogs die. There are now blogs covering every sector, niche and idea. Blogging has changed the way that publishing works and thrown the traditional media world on its head. But can blogging be a career? Our panel features four entrepreneurial power-bloggers who have turned blogging into a career -- one reader at a time. This isn’t a conversation about SEO and spammy sites that fill the internet, but about creating a blog with quality content and building a solid readership that translates into a paycheck.