In terms of Wall Street Journal Guide to Information Graphics and Best American Infographics are great resources on how to think about visualizing data and telling a story. I can lend you my copy of either. For example, I really like Chicago’s Million Dollar blocks as a way of visualizing similar data about housing and incarceration using Leafet and D3. You can view the entire source code and data for the project online as well.
In terms of paid, GUI based software, there is Tableau and Microsoft Power BI, both of which produce embeddable data visualizations. You can also embed basic charts from Google Spreadsheets.