"Held: Google’s copying of the Java SE API, which included only those lines of code that were needed to allow programmers to put their accrued talents to work in a new and transformative program, was a fair use of that material as a matter of law. Pp. 11–36."

Google's statement on sharing ad space / rotating Google Ad ID's to share profits. TLDR: It is explicitly allowed.

generator for legal statments / conditions of use types of things on sites and apps

URL Decode Online converts the given URL Encoded String to a normal URL format with special characters. Just paste the URL Encoded text and instantly decode a URL. Works with PHP, Javascript, and JAVA" to tag(s). That website also provides the tools related to number utilities, unit converter, developers, string utilities, converter, and IP tools as well under one domain.