SEO Search Ranking allows you to easily monitor your websites’ search engine ranking (aka SERP) for unlimited amount of keywords.
Is it worth it?
Its not a bad resource. Can be quite useful
Rating: 3 stars
Link to App Cost: 3.99
Resources:
http://www.seo-101.com/
http://www.forumdr.com/category/seo/
http://www.professorlifeuniverseandeverything.com/the-frustration-of-search-engine-optimization-seo/198/
http://www.searchengine-faq.com/