i think the logo from GoldNetX is pretty good,
needs some work maybe but the font and placing of thet text is good, and i really do like the circle(if i may call it like that) around the text. you could maybe add somekind of shiney effect(i love shiney effects

) to the circle but for the rest it's great......
and to stiney51, it's true indeed that you need to have a logo fitting a busines card and a brochure but a cicrle as an outer rim makes always a good logo....
and for the part of simplicitey that's true but i never seen a really difficult to make logo...i think that that's to expensive for big companies.