Signing up for a Gmail account opens you up to a world of other Google services as well as e-mail; Picasa online photo albums, Blogger blogs, Docs for word processing, spreadsheets, presentations, and YouTube video sharing, and now the Google+ Facebook clone. Gmails interface has long had all the charm of a spreadsheet—lots of text, lines, and links. There are no tabs like you find in Yahoo Mail to help organize replies, searches, and more.
Theres also no preview panel, such as you find in the new Hotmail, Yahoo Mail, and AIM Mail. Clicking on an e-mail entry in Gmail means your inbox view disappears, and some of us like to have that list in view while skimming through e-mails. It has multiple modes to view the interface like comfort, cozy, simple etc.