When leading Internet of Things service provider Xively.com wanted to make it easier for their users to connect Arduino boards to their service they hired us. Building upon our open-sourced HttpClient library for Arduino, and our work on the Arduino Ethernet library, we wrote the Xively-Arduino library and some example programs to use it.
The library works equally well with either the Ethernet or WiFi flavours of Arduino, and makes it simple for users to record or retrieve sensor data using Xively.com. Now any user setting up a new feed is directed to the library and examples.