I'm a web developer who is one half of a start up. Part of our business is designing, building, and hosting websites for clients. Past experience has shown me that webapp maintenance can, at times, be time consuming. That said my mantra thus far has been "outsource, outsource, outsource!" when comes to in-house tech needs so that I don't get tied down dealing with maintenance issues. Instead of our own file/mail/wiki server we use Google Apps. Instead of hosting our own project management system we use Basecamp. So when it came to setting up a blog for our recently launched company site it seemed logical to go to wordpress.com, set up the blog there, and put it under a subdomain of our main domain. Now, after reading/discussing more about SEO and inbound marketing, I'm not so sure that was a great idea. It seems like subdirectories work better for bringing authority to your domain.
What I wonder is whether or not it's worth it to leave wordpress.com while my blog is still new and just set wordpress up as a subfolder on our company site (which I maintain and host). I can do it, but I am reluctant because of the cost it incurs (time and VPS resources). Is a subdomain really that much worse than a subfolder? Old battle, I know, but I've done my research and would still like to know thoughts on my particular case.
Also, we are a company that provides the aforementioned services, but we are also launching a product with its own site in just a few weeks. It's a second brand, and we want it to attract the most attention. Our blog, however, will encompass everything we do (which is a lot -- tech stuff, print making, graphic design, etc.) and it seems to sit best under our company domain. However, if we want most attention to go to our product, should the blog go under the product domain as a subfolder?