? Spread the word by blogging:
Try to make a convincing invitation to drive registration. Don't give them a reason to feel like your invitation is a corporate "fill in the blank" form. Target a specific segment and make a personal connection, so you can retain them longer.
Follow up emails can help you connect with whom you are targeting and generate a better ROI without spending much.
? Webinar helps generate a massive following for your brand, and Google+ enables you to host on hangout for free.
? Start on time and end on time: