I notice that the British Library has redesigned its website. It now highlights a search for BL resources: allowing a single search across the website, catalogues, journal articles for delivery, and digitized collections. This is an interesting high profile example of the desire to offer readers more unified access across the range of collections available. Which moves beyond the silo based approaches that owe as much to historic practice as user interest (look here for the catalog, over there for digital collections, and over here for journal articles).