Yahoo! Mail
Yahoo! made a deal with the online communications company Four11 for co-branded white pages. Marvin Gavin, who worked at Four11 as the Director of International Business Development, said "We always had a bias about being acquired by Yahoo. They were more entrepreneurial than Microsoft. We had a great cultural fit – it made a lot of sense." In the end, Yahoo! acquired Four11 for $96 million. The purpose behind acquiring Four11 was the company's RocketMail webmail service, which launched in 1997. Yahoo! announced the acquisition on October 8, 1997, close to the time that Yahoo! Mail was launched. Yahoo! chose acquisition rather than internal platform development, because, as Healy said, "Hotmail was growing at thousands and thousands users per week. We did an analysis. For us to build, it would have taken four to six months, and by then, so many users would have taken an email account. The speed of the market was critical."
History of Gmail
At the time when Gmail was being developed, existing email services such as Yahoo! Mail and Hotmail featured extremely slow interfaces that were written in plain HTML, with almost every action by the user requiring the server to reload the entire webpage. Buchheit attempted to work around the limitations of HTML by using the highly interactive JavaScript code, an approach that ultimately came to be called AJAX (Asynchronous JavaScript and XML).