logstash - logstash is a tool for managing events and logs.
Open Listings - Buy a home without a real estate agent.
rsyslog - Rsyslog is an enhanced syslogd supporting, among others, MySQL, PostgreSQL, failover log...
Riley - A personal assistant for apartment hunting
Graylog - Graylog is an open source log management platform for collecting, indexing, and analyzing both structured and unstructured data.
Peerstreet - Finances real estate through a form of crowdfunding.