AirMason - Employee Handbooks Done Right. Start from a template and send a beautiful employee handbook that they actually want to read. Publish digitally or as a PDF.

AmzScope - Find profitable products for sale on Amazon in one click, relying on statistics instead of intuition

FileProInfo - It's All About Files, Software, Online Tools - 100% Free

Jungle Scout - Amazon product research made easy.

File-Extensions.org - Large computer file extension library with detailed explanation of each file type with links to download free or associated software programs.

AMZScout - AMZScout extension will help you make a decision about picking a niche based on the actual data, not intuition.