Givers often need to use an institution as the trustee, especially when the trust will run for decades.

WSJ: The $5 Million Tax Break

"Among current non-internet users, almost half (48%) say the main reason they don't go online now is because they don't think the internet is relevant to them -- often saying they don't want to use the internet and don't need to use it to get the information they want or conduct the communication they want, " said the report.

CNN: Why one in five U.S. adults doesn't use the Internet

This kind of modesty has often held women back in organizations, but the need to use social media professionally makes it overcoming a reluctance to self-market more important.

FORBES: Women And The Art Of Self-Marketing