Displaying your posts on an external site doesn’t have to involve time-sapping programming. All wordpress and indeed most blogging sites come with RSS feeds as standard. Why not use these to display a summary of your recent posts on other sites just like the one on Absolute Advantage homepage

In fact, if you really want to get the most out of your blog you should be using Feedburner anyway. Feedburner, now owned by Google offer a neat service called BuzzBoost. BuzzBoost republishes your burned feed’s content as HTML you can use on any other site. You can adjust the settings within the Feedburner account and create CSS classes to adjust the way it displays.
Some helpful links…
Google Feedburner
Styling the appearance of BuzzBoost