Before I start writing about the advantages of Gigabit Ethernet, I'd want to say a few words about Ethernet. First thing - for non geeks - Ethernet is different from Internet. Whilst Internet is about connecting computers all over the globe, Ethernet was made a standard to connect computers locally or in technology terms - Local Area networks. That's the advantage of Ethernet; it takes care of local areas while Internet takes the pain of transmitting data over a large distance and hands it over to Ethernet and things fly by.
Speed was a crucial aspect of the Internet and most importantly, for Ethernet. The committee for standards - IEEE was always working on ways to speed up. Fast Ethernet followed and now - Gigabit Ethernet. What fascinates me (and will fascinate you as well) is that, theoretically speaking - Gigabit Ethernet can transfer data at the speed of 1 Gigabit per second. That's right. That is a huge amount of data. Gigabit Ethernet is delivered over fiber optic cables.
You might wonder if that is commercially available yet. Well, it is! There are service providers out there ready with quotes. All you have to do is reach out to Gigabit Ethernet providers and the rest will happen so fast that you will then understand its speed!