I've used this once before. Super useful. Colour Lovers (http://www.colourlovers.com/) is also a good resource to find color palettes.

Use this all the time.

@rrhoover http://pltts.me is another good color palette site

Before finding this I would spend hours pretending I could use photoshop.

Love this product ...stumbled across it on Google and ended up choosing a bg pattern from it for my blog (http://artia.tumblr.com/) Also @rrhoover, my co-founder helped create Colourlovers :)

Excellent resource! A subtle texture can go a long way

They have great patterns! I have a set of 90 subtle patterns that I use for creating website backgrounds (https://www.photoshopsupply.com/...)