A List Apart has an informative article by Aarron Walter on Findability. Findability leads to better usage, which can lead to benefits for businesses and individuals. It requires explicit attention and effort to incorporate it in not only during the development but also through all the changes that happen over years. This, I believe, is the biggest reason why it is one of the aspects that gets ignored of pushed down the priority list over time. Findability is a cross-cutting aspect in everything design, right from Information Architecture to usability to SEO and can directly impact your users and hence you. To an extent that most of the best practices and standards are about making it easier for the users to find and access. Aarron does a good job of illustrating this by talking about how different roles can contribute to it. Read the article, it will help you rethink about findability and discoverability.