NGeoNames is a library for the GeoNames API built on .NET 4.5. This library provides reverse geocoding methods along with classes for downloading, reading, parsing, writing, and composing files from GeoNames.org.
Yahoo has just released a major update to YQL, the Yahoo Query Language platform they first launched late last year as part of their Yahoo Open Strategy. YQL is a SQL-like programming interface to all Yahoo data that can also support non-Yahoo data as well (think of queries that look like: select id from flickr.photos.search where text='car'). This week's release adds a set of new features called Yahoo Execute which begin putting in place more pieces of a powerful cloud-based development platform.