FIS-B offers the following:
Aviation weather info such as METARs, TAFs, winds aloft and NEXRAD maps
Temporary flight restrictions (TFRs) and status updates for special use airspace (SUA)
AIRMETs, SIGMETs and convective SIGMETs
Pilot Reports (PIREPs)
NOTAMs (Distant and FDC)
Also...