I am working on a web app and was looking if there is any research/guidelines on placement of username and password on the homepage. Yahoo mail and Gmail places username and password to the right, facebook to the left of the screen. Does it matter where its placed. I quickly googled and couldn't find any link on the same so posting this question here.
I found Jared Spool's article "8 More Design Mistakes with Account Sign-in" but it doesn't list the details on placement.
Would appreciate any inputs or link if anyone could provide.