It's in the nature of freelance work that it doesn't necessarily respond well to being penned into the working day. This editor has been kept awake by the knowledge that he is tantalisingly close to completing a range of bibliographic data for a forthcoming online project. The work can be time-consuming and sometimes involves buttressing the foundations of scholarly publications compiled in eras which allowed a more relaxed attitude to referencing than is now acceptable. It's at this point that the remote researcher falls back on online catalogues and has cause to thank the unsung heroes behind them. Such a resource is the agglomerated catalogue of seventy major libraries in Britain and Ireland, Copac. Its interface has recently been redesigned with a softer colourscheme and a more user-friendly layout which provides more information than was previously available on the old search results screen. The links to the holdings of individual libraries are an especially welcome feature of a redesign which probably reduces the number of clicks most visitors need to make on their mouse or touchpad.