NASA has a new web site dedicated to providing resources on sea level for across the US. The site is available at https://sealevel.nasa.gov/. You can also read more about it at TechCrunch at http://techcrunch.com/2016/04/04/nasas-new-sea-level-site-puts-climate-change-papers-data-and-tools-online/.
The site is focused on space-based observations (hence why it is coming from NASA instead of NOAA) but has plenty of land-based indicators as well. It has a lot of background information, a list of reference papers, and a Data Analysis Tool which is still a little buggy but is fun to play with.