Screenfly — Test Your Website at Different Screen Resolutions
Screenfly allows you to view your website on a variety of device screens and resolutions.
How to Maximize Your Facebook Engagement
If you have a Facebook page, you likely know how important it is to get likes and comments. Without those, your EdgeRank suffers, and your posts are seen by fewer fans in the future. Facebook has already admitted that the average Facebook page only reaches about 17% of its fans. Since less than 1 to 2% of fans go back to your page, EdgeRank and newsfeed visibility are critical.