This is what I am doing to read interesting articles I find on the web, on the Kobo in a nice format.
Simply register to Instapaper.com, go to Extras and drag they bookmarklet to your bookmark bar.
Now browse to a interesting article (hint: The Bygone Bureau: http://bygonebureau.com/
), click on the Read Later bookbark button.
Go back to your Instapaper (http://instapaper.com/u
) and tag the aritcles you wanna convert and click on the ePub button in the Download section.
Now you've got your article nicely formatted. I use to automatically open it with Calibre so that I can later save it to the Kobo.