I've always been managing my link building opportunities with spreadsheets. While this is a decent way to get started, it quickly became unsustainable once I began hiring multiple VAs, and had to track multiple projects at different stages of completion, not to mention the time spent looking for new 'low hanging fruit' sites.

Link Chest centralizes all these things. The link types are categorized and put in a logical sequence, starting with high DA links and moving on social networks, directory links, website builder links etc. There are also some stats on the traffic each site receives, the keywords it ranks for, as well as shared IP risks.

I've only been using this a few days, but I'm quite happy with the organization, the guidebook explaining how to get each link, and the layout of the site.