I'll be explaining why it works this way in Link Management section. But just to give you heads up: If you are new to blogging, whenever you mention a link to another site, add an attribute to this link rel="nofollow".
Both, RSS and Blogging help you to build more inbound links and with little effort. As you might know, back links (a.k.a. inbound links or one-way links) make the base for off-site search engine optimization.
Search Engine optimization consist of several necessary aspects. You might think that each of the aspects is a completely different Animal, but this is not quite true. They bring success only when considered together, as one whole thing. Otherwise, they might become pointless.
What does a company want to achieve from blogging?
As a marketer, you know how important to convince your management in blog's necessity. It's not an easy task, but the points are so much easy to digest - nobody would be able to resist.