Here are a great set of blogs that we follow that aim to provide great content.

• Kissmetrics: They have a great blog (//blog.kissmetrics.com/) and set of info-graphics (//blog.kissmetrics.com/infographics/) that are well worth the read.
• KickoffLabs: Our blog aimes to help you refine the whole experience around your landing pages. ( //blog.kickofflabs.com )
• Unbounce: They offer a great series of home grown and guest post content for their readers about landing pages. (//unbounce.com/blog/)
• Which Test Won: Offers a wide variety of test result comparions for A/B test experiments they've run. (https://whichtestwon.com/case-studies) Keep in mind that results do vary by customer, product, and industry. You should always test yourself. :)
• The Visual Website Optimizer blog (//visualwebsiteoptimizer.com/split-testing-blog/) and the Optimizely blog (//blog.optimizely.com/) also offer regular inpsiration for your testing.
• The CopyBlogger offers great insights into generating great headlines and landing page copy. (//www.copyblogger.com/blog/)