With email newsletter advertising, you can target the exact customer for your business, product or service directly. Email newsletter advertising costs are embarrassingly inexpensive compared to their offline counterparts and other media to reach the same target market, i.e., television and radio. Email newsletters are archived and filed much easier than print publications that either get tossed after reading, or where your ad is buried among other numerous ads. Sponsorships are ads that are placed separately from the newsletter's regular classified advertising section, which gives the sponsor ad even higher visibility. Although sponsor ads are more expensive, the increased expense is reciprocated with the allowance of more space for text in order to better convey the message to the prospective buyer, as well as its isolation for grabbing the attention of more readers that might overlook it within the classified section.
Open rates are rates charged for advertising only once, or one time, within a publication.
Multiple placements are, generally, less expensive. I suggest that when placing ads in daily or weekly online newsletters, you consider placing at least two ads the first time, preferably three. This will enable you to better gauge your ad response and results. Ad swaps are the exchange of ads between ezine or newsletter publishers promoting their respective ezines. The intent is that, through doing so, each publisher can attract new subscribers from and to each other's publication.