The National Network for Civic Engagement (BBE) is an association of civil society, government and business organizations seeking to promote sustainable civil society and civic engagement in all social and political areas.
General: any and all types of volunteering
Önkéntes Központ Alapítvány (National Volunteer Center)
Cluttered but chock-full site that permits free posting of all sorts of classified ads, with a category clearly noted as "volunteers." As of mid 2004 only London is listed, but more UK cities are planned.
"Charities can post their volunteering vacancies through our recruiter services and would-be volunteers can search from hundreds of exciting opportunities that match the skills they have developed in their daily working life to positively impact a charity."
UK site to " to make it easier for you to search and recruit trustees, skilled volunteers, potential mentors, and Board Members for your charity, NGO or social enterprise...By skilled volunteers we mean people who can provide pro bono assistance in specialist areas - marketing, finance, fundraising, strategy or people with technical abilities in other professions." Career Volunteer gives you access to fully funded expertise and Board-level skills from outside the sector, provided on a pro bono basis -- candidates are drawn from large corporates participating and funding the programme. Do place volunteers internationally.