The Google Custom Search .NET library by Google interacts with the search and customization functionalities of the API. It contains guides to setup with authentication and authorization, simple API example, web applications, and service accounts. Besides this .NET library can access custom search, additional APIs can be also supported with their respective documentation. A complete list: https://developers.google.com/api-client-library/dotnet/apis/
Carpools are a great option for the daily commute to the office, especially for those who want to save a substantial amount on fuel or just simply want to minimise their carbon footprint by using their vehicles less. Carpoolworld is an application that works to help commuters and other travellers find others in nearby locations with similar transportation needs, to make ride-sharing arrangements. Carpoolworld also provides the Carpoolworld API that gives developers the option to create applications using this data.
Yesterday's Mashup of the Day was a fun one for those who miss the good old days of command shells, goosh.org, "the unofficial google shell". Developer Stefan Grothkopp coded this on top of the Google Ajax Search API to give you a command shell for interacting with Google search queries.
Gnomedex, the annual tech conference in Seattle hosted by Chris Pirillo, and Microsoft Live Search, are teaming up to sponsor a developer's contest dubbed "Will Code for Green" where judges will accept mashup entries in two categories: Economy and Ecology.