Everyone remembers a time when they laid on their back in the grass, staring at the clouds daydreaming or finding images in their puffs.
Clouds are a powerful Logo, conjuring imagery of dreams, creativity and playfulness. Sometimes clouds are combined with thought bubbles to invoke feelings of dreaminess. The clouds can be a 3D bubble or take on a flat feeling. Many of these cloud Logos represent new ideas, hence the thought bubble. Many "clouds" came from new businesses on the internet, certainly a place for dreamers. Some, also include imagery of the sun, which evokes a feeling of a new dawn.