You are an issuer, investment adviser, or broker-dealer.  You want to communicate to the public about securities.  Should you (a) type a letter and drop it in the mailbox; (b) chisel out a prospectus on two stone tablets; or (c) use social media?

If you chose (c), please see our new edition of the Mayer Brown Social Media Guide.  We discuss in depth the latest guidance and regulations covering the use of social media, including using websites in capital raising transactions, “advertisements” under the Investment Advisers Act of 1940, the use of robo-advisers, and FINRA guidance on the use of social media by broker-dealers.