[HOWTO] Layout with "teaser" posts

I couldn’t think of a better term for what I would like to achieve, so here’s a fuller description:

In essence, I would like the posts on my blog to be a few sentences and then a link to the longer article. I’m not particularly partial to a vertical display of posts, preferring instead, the posts to be displayed in a table format (here’s an example blog. Note that in the example, each post is about a paragraph in length with a link to the full article.

Just point me in the right direction.

Thanks, in advance,

Michael