A persistent search for gmail in firefox - http://blog.persistent.info/2005/03/adding-persistent-searches-to-gmail.html

check mail via atom - http://mail.google.com/support/bin/topic.py?topic=1573

gmail tips - http://gmailblog.blogspot.com/2007/08/top-10-little-known-gmail-features-part.html http://www.mattcutts.com/blog/9-power-tips-for-gmail/

get a copy of your data - https://www.google.com/settings/takeout/custom/gmail,calendar

8 incredible Gmail apps and tools to tame your inbox - https://www.androidpolice.com/top-gmail-apps-and-tools-organization/