Check-in to Cause Marketing for Dummies Today & You Could Win a Copy!

[Update 8/4: We had three winners yesterday. Thanks to everyone that participated!]

Are you in Boston, New York or Los Angeles today? Well, it's your lucky day! Check-in to "Cause Marketing for Dummies" on Foursquare in Boston, New York and Los Angeles--today only--and one person in each city will win a copy of my first book Cause Marketing for Dummies.

You'll learn something checking-in because each location has a special connection with cause marketing.

Two things to keep in mind.

• You don't have to go to the actual location to check-in to "Cause Marketing for Dummies." (Shhh...just for today, we'll set Fousquare's rules aside!) If you're in Boston, New York or LA today, whip out your smartphone, hit the check-in button on Foursquare and type in "Cause Marketing for Dummies." Hit check-in here and presto you'll be entered into the contest to win a copy of my book. Even better, share your check-in with followers and friends on Twitter and Facebook so they too can take part of today's cause marketing madness!

• In Los Angeles, you have a second option. Allison & Partners is hosting a fantastic cause marketing conference today called "CM Conference: Maximizing Corporate & Nonprofit Partnerships." (Follow the conference on Twitter with the hashtag #apcause.) When you check into the conference on Foursquare, you'll also be entered to win a book!

After today, we'll pick winners from the three cities and the conference and we'll be in touch about getting you you your book! Is your city not on today's list? No worries. It could be in the days and weeks ahead! Stay tune.

For those of you in Boston, New York and LA, remember: many will enter, few will win. Good luck!