Pretty much any web site here will be in Icelandic. Google translate usually does a decent enough job for you to get a rough idea of what the site says. If you use the Google Chrome browser, it should detect the page in Icelandic and offer to translate it for you. Unfortunately, that's about as good as it gets here.
As far as places to live, if you're asking about apartments and such, leiga.is is probably the best free option to see what sorts of apartments are out there.