Sherman Oaks-based Advertise.com, the search marketing provider headed by Daniel Yomtobian, said Tuesday that it has expanded into email marketing. The firm said it has launched a new Email Content Network offering, which will connect advertisers ads with email updates to consumers. Advertise.com said that advertisers can choose a category or vertical market, and use its systems to tap into a network of opt-in email publishers, automatically matching ads with users. Advertise.com says it is also providing its services to email list owners and list managers looking to earn revenue from click throughs to advertisements.