According to the DCC website, “digital curation involves maintaining, preserving and adding value to digital research data throughout its lifecycle.”
I also love the tagline “because good research needs good data.”
To me, digital curation seems like the research related arm of digital preservation or even digitization. In all cases, the goal is to not only preserve the digital artifact or surrogate in a stable form, but to add data in order to refind it later.
This site is the go to resource. Now research and data can get married.