Link roundup

1. "Remember, when signing up for things with your email address, put the name of the company as your name so that you know who is leaking your email to spammers." More tips about spam here.

2. How to make a foam and posterboard mortar board graduation hat for kids.

3. "The Walt Disney Co.’s Imagineering research division, which develops new technologies for the company’s theme parks, is planning to open a small lab in East Cambridge next month, 11 years after Disney shuttered its last such facility in the city."

*Buy Walt Disney Imagineering: A Behind the Dreams Look at Making More Magic Real at Amazon.