Google Developers their AdWords accounts and campaigns. Google App Engine lets developers run web applications on Google's infrastructure. Google App Engine supports apps written in several programming languages. With App Engine's Java runtime environment, one can build their app using standard Java technologies, including the JVM, Java servlets, and the Java programming language—or any other language using a JVM-based interpreter or compiler, such as JavaScript or Ruby. App Engine also features a dedicated Python runtime environment, which includes a fast Python interpreter and the Python standard library. Google Plugin for Eclipse (GPE) is a set of software development tools that enables Java
Yahoo! Yahoo Real Estate and Yahoo Travel, which enables users to gather relevant information and make commercial transactions and purchases online. Yahoo Auctions were discontinued in 2007 except for Asia. Yahoo Shopping is a price comparison service which uses the Kelkoo price comparison service it acquired in April 2004. Yahoo provides business services such as DomainKeys, Yahoo Merchant Solutions, Yahoo Business Email and Yahoo Store to small business owners and professionals allowing them to build their own online stores using Yahoo's tools. Yahoo Search Marketing provides services such as Sponsored Search, Local Advertising and Product/Travel/Directory Submit that let different businesses advertise