If you don’t already have a facebook and twitter account for your company they are really easy to setup. On facebook remember to click the “Create a Page for a celebrity, band or business” link on the homepage. Once you have those accounts setup head over to twitterfeed.com and sign up for an account. Enter your blog url where it says rss input (it will automatically locate the rss file) for us this was simply http://www.jetinternetmarketing.co.uk/blog
Then on the second part of the registration link the blog to your twitter account using oauth and grant permissions for facebook.
Viola your twitter and facebook profiles will automatically be updated with new posts. You could also do this with any rss feed. You could output a simple rss feed when posting to a specific category or even use this to help get backlinks indexed using various facebook/twitter accounts…