FOSS4G NA 2015 (Free and Open Source Geospatial North America conference) will be running March 9th-12th 2015 In Burlingame, California (Hyatt, San Francisco Airport). Call for talks and workshops is now open and we've already got some submissions to review. Deadline for submission is November 17th 2014. Presenters including (workshop and those giving 35-minute standard talk) get to attend the 3-days general sessions for free. The conference consists of one day of workshops and three days of general sessions, with lightning talks on some or all of of the general session days.
Details about presentations here: CFP details. The FOSS4G NA 2015 is a collaborative event co-sponsored by OSGeo and LocationTech
FOSS4G NA 2015 will be co-hosted with EclipseCon North America 2015. Admission to FOSS4G NA 2015 gives you admission to EclipseCon NA 2015. So get 2 conferences for the price of one and go conference hopping.
For PostgreSQL and PostGIS folks there is a likely chance that there will be a PostgreSQL day at the same venue during the same period. So we might have a very special PostGIS / PostgreSQL day. I'll update as more details of that surface.