When searching on obscure topics I'm bound to get results from questionable sources. When I see a more modern layout, it lends creedence to the source. The article in question could be out of date or a complete fallacy but the layout validates it. I noticed today a newer form of validation.
When a site has social media buttons ( submit to Digg, Reddit, Del.icio.us) Since that site is "more hip" I'm more inclined to dig deeper.
What other cues do you find when you encounter new sites?