The licensing information for the 3rd party libraries utilised by Woto are as follows:
NHibernate - GNU Lesser General Public License
Castle Windsor - Apache 2.0 License - Apache License requires preservation of the copyright notice and disclaimer
DnDNS - Custom License - DnDns License requires that redistributions in binary form (is cloud hosting redistribution?) must reproduce the copyright notice in the link above
Ionic Zip - Microsoft Public License (Ms-PL) - Ms-PL requires that if you distribute any portion of the software (is cloud hosting considered as redistribution?), you must retain all copyright, patent, trademark, and attribution notices that are present in the software
Newtonsoft Json - The MIT License (MIT) - MIT License requires that the its copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
Facebook C# SDK - Apache License v2.0
Twitterizer2 - Custom License - Twitterizer License requires that redistributions in binary form must (is cloud hosting considered as redistribution?) reproduce its copyright notice, list of conditions and the [following] disclaimer in the documentation and/or other materials provided with the distribution.