I don't disagree, but I think the burden here is not on the collection building process, but on the search tools. Generally we do not weed our ebooks unless the

I don't disagree, but I think the burden here is not on the collection building process, but on the search tools. Generally we do not weed our ebooks unless they are quite obviously problematic (generally out of date or demonstrably incorrect). In practical application, you're probably right, but I would hate for that to become a reason to weed when it should be a reason to make search tools better. In addition to physical space, the literature is pretty clear that weeding has a long term positive effect on circulation. A physical collection that looks good and seems current is more likely to get used than one that looks beat up and who's best material is buried among rows of books about the OJ Simpson trial. We don't really have data or experience yet on electronic collections, but I'm genuinely curious if the same would be true. The OJ Simpson story is from actual experience. At a conference I went to a local library that had no fewer than 5 books about OJ Simpson with copyright dates in the mid 1990s. They looked like they hadn't been checked out for some time...