A group of GLBT technologists was forming in the Research Triangle Park area in NC. They needed a logo which indicated the members were all technologists, and GLBT people.
In general I find most GLBT logos that include a rainbow to be dominated by the rainbow colors which force a visual dissonance and also make the logos seem too similar.
The concept behind this logo was to include a rainbow that did not dominate the image, while also conveying the idea of technology.
The final image was based on stock vector art of circuit board. I modified the color of a series of circuit channels to show the rainbow colors, using the same yellow as the rest of the circuit channels.
This resulted in a rainbow that is clearly visible, but does not dominate the scene.
The circuit also conveyed the concept of "technology" while camouflaging the rainbow.