Yesterday I have found and interesting tool that can help in finding out what Themes or Plugins other WordPress sites are using. In case you like the theme or plugins that other WordPress sites are using with this tool you will find very easy what other is using. wpthemedetector.com is the site where for free you can insert the link to the WordPress site that you want check and in couple of seconds you will find out what other WordPress site it is using in matter of Plugins and themes. Check below a picture with a test done for my site:
Before finding this site I was checking the code to see what theme and plugin other WordPress sites are using. Now with this site everything become a lot easy.