The Data Visualisation Catalogue - Reference tool for data visualisation
Airtable - Airtable works like a spreadsheet but gives you the power of a database to organize anything. Sign up for free.
Flourish - Powerful, beautiful, easy data visualisation
Spreadsheet.com - Spreadsheets that come alive as applications
nivo - nivo provides a rich set of dataviz components
Rows - The spreadsheet where teams work faster