User blog comment:B214/Talk About What You Want! 2/@comment-82.178.203.123-20140616193204/@comment-16281343-20140616193718

huh?

Possible meanings of your question
 * How can I find Sona's mother's info page?
 * There is none. She hasn't been introduced in the series.
 * What does Sona's mother look like?
 * Like the answer above, she hasn't been introduced yet.

The new trivia about her being Venelana's best friend is just information given by Ishibumi thru twitter.