The CCCOI is a partnership between the South Carolina Sea Grant Consortium, North Carolina Sea Grant, and the Carolinas Integrated Sciences and Assessments (CISA) program at the University of South Carolina. Funded by the National Sea Grant College Program and the NOAA Climate Program Office, the CCCOI uses a regional climate extension specialist to coordinate a coastal climate outreach program for 8 coastal South Carolina counties and 20 coastal North Carolina counties. Since 2008, the climate extension specialist has used multiple technologies to reach different audiences with varying degrees of success. For example, an online web log (blog) was initially successful with providing information on coastal climate issues to the Carolinas. However, the blog was discontinued after failing to sustain a local readership. Conversations with stakeholders and consultation with an advisory committee revealed that many in the blog's target audience prefer to access professionally relevant information at their places of employment, but are blocked by their employers from accessing any type of blog or social media. Other technologies, like facilitated computer-based conceptual diagramming, were more successful in supporting decision-making because of their ability to foster understanding of climate concepts and catalyze climate adaptation planning. However, decision-makers were more interested in these technologies when the burden of using them fell to the outreach facilitation team rather than to themselves. Finally, professionally oriented custom social networks were initially helpful at building regional and national outreach capacity; the lure of discussion forums and resource pages fostered a large membership within the Sea Grant Climate Network in 2009. As time has gone by, it has become clear that a dedicated central core of users is necessary to keep up interest in the social networking site. Lessons from these examples and others will help outreach professionals consider matching appropriate technologies to their audiences, even when audience surveys are not feasible.