This is an article from thebalancesmb.com on how to make money by blogging:
6. Create a blog to advertise a specific product/service.
Blogs are fast becoming the trendy alternative to the classic salesletter site. In this case, the format is the only real change; the message is the same. Typically, the pitch is woven into as many blog entries as possible.
Can anyone please help me understand the meaning of the phrase "the pitch is woven into"?