Swivel is a website where people share reports of charts and numbers. Swivel is free for public data, and charges a monthly fee to people who want to use it in private.
R. Westerholt, M. Gröbe, A. Zipf, и D. Burghardt. 10th International Conference on Geographic Information Science (GIScience 2018), том 114 из Leibniz International Proceedings in Informatics (LIPIcs), стр. 63:1--63:7. Dagstuhl, Germany, Schloss Dagstuhl--Leibniz-Zentrum fuer Informatik, (2018)