The Organize Series plugin helps with the organization and presentation of articles/posts you write as part of a series. It helps make it easier for readers of your blog to discover all the series you’ve written and also to easily find post that are part of the same series.

Organize Series actually adds a new taxonomy to the WordPress taxonomy structure so your blog would have “categories”, “tags”, and “series” as the taxonomy types.

Pricing: Free
Requirements: -
Source: http://unfoldingneurons.com/neurotic-plugins/organize-series-wordpress-plugin