Implementing a combinatorial parser utilizing applicative parsing.
I believe the "right way" to do serialization and deserialization is a "type class based" approach, like what Aeson does. Unfortunately the community hasn't given us one in the Java-land. Jackson is a widely (?) used JSON serialization libary. Unfortunately it has a few problems, but the good thing is that it provides some ways to make it more tolerable.
How I moved my blog from Blogger to a more developer-friendly platform.
Some thoughts related to Subtext.