Clipper: ancient programming language

http://www.thocp.net/software/languages/clipper.htm
http://raumi75.jimdo.com/2010/02/27/from-ca-clipper-to-windows-in-5-minutes/
https://sites.google.com/site/hmgweb/

HTTP Status Code

http://www.restapitutorial.com/httpstatuscodes.html
https://www.w3.org/Protocols/HTTP/HTRESP.html

E-Commerce

https://www.userlike.com/en/blog/2014/02/05/the-10-books-every-ecommerce-professional-should-read
https://e27.co/new-to-e-commerce-here-are-10-recommended-books/
https://www.amazon.com/commerce-Essentials-Kenneth-C-Laudon-ebook/dp/B00HZVN1MQ?ie=UTF8&ref_=dp_kinw_strp_1

https://smile.amazon.com/Commerce-2016-Business-Technology-Society-ebook/dp/B01BCKTNTK?ie=UTF8&me=&ref_=mt_kindle

Cors Filter: Alternative

http://mvnrepository.com/artifact/com.thetransactioncompany/cors-filter

Java Run Verbose Class

-verbose:class

http://stackoverflow.com/questions/32597909/spring-boot-getvirtualservername-with-java-jar-and-tomcat-8-sts-runs-fine

Crash log from iOS device

https://developer.apple.com/library/ios/qa/qa1747/_index.html

JavaPoly

https://www.javapoly.com/

Atlas of Emotions

http://atlasofemotions.com/

Plesk Antispam Tool

http://docs.plesk.com/en-US/12.5/administrator-guide/mail/antispam-tools.59431