The prices are caused by inflation, massive cullings of infected hens with bird flu, and just the area you live in. Where I'm at, eggs are $4.50 USD/dozen at the moment. They've been higher though.
Those eggs specifically look to be "cage-free", which increases their price by a little bit.
I use gmail at work and I see the logo in chats, email, drive, docs, and I'm not sure where else. Its annoying when I'm typing an email and it tries to get me to use it. I don't know how to get rid of it either.