My advice to companies and entrepreneurs: Talk with a corporate securities attorney before you start any fundraising activity. The rules are complex and it would be easy to violate them. Violating these rules could carry pretty significant consequences, including possibly unwinding the fundraising after it is completed, civil lawsuits, SEC penalties, and potential criminal punishment.
Here are links to two articles covering these new rules.
The Wall Street Journal:
http://blogs.wsj.com/venturecapital/2013/09/23/startups-vcs-now-free-to-advertise-their-fundraising-status/
Forbes:
http://www.forbes.com/sites/tanyaprive/2013/09/23/general-solicitation-ban-lifted-today-three-things-you-must-about-it/
Here's a link to the SEC press release relating to the rules:
http://www.sec.gov/News/PressRelease/Detail/PressRelease/1370539707782#.UkBkOoYsk_Y
Link to the rules: http://www.sec.gov/rules/final/2013/33-9415.pdf