Q. First site to offer 1gb email?

A. Not Google.
Thats right, though Gmail is still in testing already released into the wild is Spymacs offering.

Claiming to be the first to offer 1gb web-based (along with POP3 access) here's what they have to say:
"Perhaps the best kept secret on the Internet, each Spymac membership includes an e-mail account that can be accessed externally via POP3 or with Spymac Mail's web interface. Each account includes a generous 1000 MB of storage space. Spymac Mail sends and receives millions of e-mail messages every year."
With the email account you also get: