Write to hola@diegofresno.com.
Corrections
If something here is out of date or simply wrong, that is the most useful message you can send. Point at the page and the figure, and it gets checked and fixed with a note explaining the change.
Operators
You are welcome to write with corrections about your own business, and they will be checked like any other source. What is not possible is paying to appear, paying to rank higher, or reviewing copy before it goes out.