You probably had heard a lot about the importance of deep linking inside a blog. Be it for SEO reasons, or from the desire to increase the number of pages per visit, it is good to link to your old posts. We all know how much time we spend on deep linking: search for the desired post, copy the permalink, include it in the current post… or let WordPress do it for you, by using the aLinks plugin. You just indicate the desired keywords, and aLinks does a search within all posts, chooses the most relevant one and creates a link to it each time your keyword string appears on a page.
Another benefit of aLinks is that it makes Amazon affiliate links very easy: you input your affiliate ID and the keywords, and your links are built automatically.
I found it very easy to install and to set up. It is active and working in this very moment and you’ll never guess which links I built manually and which links were built by aLinks.
Use it once and you’ll never want to live without it again. It is the same feeling I had when I got my first pair of born shoes and my best hot kicks: no matter how many other fancy sandals, shoes or boots I bought after that, my Born shoes were always on my mind.
2010 update: this WordPress plugin is not available anymore. I suppose the author wasn’t interested in further supporting it.