Question: I work in a small but growing team of UX designers developing a suite of web applications. It's become obvious that we would benefit from a common pattern library, but are unsure how to get started or what tool we should use.

We want something that we can collaborate on and also share with visual designers and developers - so adding detail such as notes, graphics and snippets of code would be useful.

Has anyone had experience of building a library like this, do you have any tips or recommendations?

Answer: 
There are several [design pattern repositories listed on Konigi web](http://konigi.com/wiki/design-pattern-repositories). From these, [Patternry](http://patternry.com/) allows you to create public and private collections of patterns.
There's a market for this type of product. We've done a lot of research on it and haven't found one that really fits the bill yet. 

In the past two org's I've worked on, we've built skunkworks pattern/component libraries by hand...typically a loose mix of PHP includes. We're toying with the idea of building some custom WordPress components for the task.

'Officially' it's usually a mess of products. SharePoint to maintain wireframes. Perforce to maintain code snippets. Random PDFs scattered about with visual design spec's. Email boxes full of discussions. It's a real mess.