If they weren't persuaded through the initial invite, you'll have many possibilities to win them over as they still see the wealth of data you have to mailing list share. Be Direct-But Not Too Much. If you've got a useful and valuable incentive to supply, occasionally post updates and that will tempt your friends and followers to go get it!
Keep in mind you're treading a fine line with this sort of posting, thus make certain they are occasional and are mixed in with several posts that mailing list are fully non-promotional in nature. You don't wish to be thought of "that guy" who's simply there to market to them only. Be Consistent in Your Social Networking! The reason why points one - four here, do work, is if you remain active in your networks and teams.
If you're solely AN occasional visitant, you won't gain much, so as to reap the rewards of those methods, post often and with wisdom, and concentrate to your core members. With personalised and permission based email service you can mailing list generate more leads and increase your response rates. If you have an internet business and looking for quick ways to reach out to people then email marketing could be one of the cost effective solutions available today in the market.