A wealth of tech-related domains hosting conference websites, with audience, history and backlinks:
adhocdatabase.com
adhocmarketresearch.com
bootstrapping.org
cloudcomputingmarket.com
computerengineering.org
contextbrokering.com
databasemarket.com
deduplication.org
digitalexpo.org
digitalexpo.org
digitalmarket.org
exclusivity.net
fabless.org
hodgepodge.org
humint.net
keywordresearch.org
knowledgeengineering.com
maritimesecurity.net
marketresearchassociation.com
marketroadmap.com
mechnicalengineering.net
mediapressroom.com
nosqldatabase.com
omdn.org
opint.com
photoagency.org
photosummit.org
quantumcomputingmarket.com
semanticmap.com
socmint.org
technologyresearch.org
techsummit.net
virtualizationmarket.com
vpnw.com
zgm.org