Randy Murray makes some decent points in his article, The Case Against Curation.
A curator is someone who is responsible for the care and conservation of something. A curate, for example, is responsible for the souls in a congregation. A curator is responsible for a collection in a museum. A curator is not responsible for a list of favorites in other museums.
A web site or a blog with links pointing to other web sites or blogs is not being curated. Such things are lists. There may be commentary, but by the very nature of the web, the person assembling the links does not have primary responsibility to care for the linked things. He or she has no control over them. They are not preserved and maintained by the one who links to them.
Hard to argue with that.