Answer
The answers for this will vary. For example, one student may talk about the blog Entrepreneurs on Fire. The blog doesn't appear to be sponsored by anyone; John Lee Dumas and Kate write the blog. The blog also features course that people can buy, as well as a podcast and products.
Entrepreneurs on Fire would be invaluable for business students because it gives people a good idea about how business leaders got their start and became successful.
Work Step by Step
In order to find a good blog, you've got to search "good business blogs" in Google and find a good site from there.