The logo is the heart of a business or a product. It must reflect exactly what you want to promote, but careful enough to not upset the viewer. It must be discrete but also to stand up in a crowd. it must be clean but also packed with beautiful subtle messages. Creating a good logo design is a hard work and most of the time is more expensive than a full website.
In this article you have a collection of 30 superb examples of logo designs either for inspiration either for just the viewing pleasure.