What are some alternatives?
When comparing SEOmator and OpenGraphTags, you can also consider the following products
SEMRush - All-in-one Marketing Toolkit for digital marketing professionals.
OpenGraphTool.com - Open Graph Checker Tool
Moz - Backed by industry-leading data and the largest community of SEOs on the planet, Moz builds tools that make inbound marketing easy.
Majestic - Majestic - Link intelligence tools for SEO and Internet PR and Marketing. Site Explorer shows inbound link and site summary data.
Raven - Use Raven to create fully scalable vector art appropriate for logos or tee shirt designs.
MetaTagsTool.com - Meta Tag Analyzer, Simulator, & Generator