Below images will take you to various RSS feeds that are listed by topic.
On various advanced Excel topics like VBA macros, Power Query, Power Pivots and Python on Excel.
Select data visualization examples from the industry are compiled on this RSS link.
Useful Access database application examples can be found on this feed.
Quality SQL samples and concepts are to be located on this link.
On the hot topic of big data one can find some good insights here.
Some select Power BI links and sites provided on this page.
Feeds on how to use Python scripting to extend the power of Excel via macros for automation tasks instead of using VBA.
Various feeds on topics about Python programming and application development.