Globes and spheres are widely used in all kinds of logos, and with good reason. The addition of a globe is a great way to show that a company has a global reach (or is aspiring to a global reach). This makes it perfect for Internet companies. The globe or sphere is often comined with a swoosh. The globe/swoosh combo is very common - which is problematic in the sense that your globe/swoosh logo could potentially drown in a sea of similar logos. The crucial bit is that each logo must be clearly differentiated. With a bit of creativity it is possible to take the globe/swoosh theme as a starting point and to give it a unique twist.