The Federal Depository Library Program offers webinars.  Past recording are also available.
Check out the following recorded webinars:

Depository Library Community Webinars
Webinars on various topics conducted by FDLP community members.
Examples:
StatsAmerica – A Portal to Apps and Data Rich Tools for Economic and Community Development
Exploring the Hathi Trust (discover 1000’s of government docs)
Find MORE!

Federal Agency Webinars
Recordings of Federal agency personnel conducting webinars for the FDLP community.
Examples:
HHS Office of Minority Health Resource Center – Advanced Online Catalog Searching – Data and Statistics
The National Agricultural Library (learn about products, services and tools)
Find MORE!

FDLP and C&I Webinars
Webinars conducted by GPO staff about depository library operations, collections, and services. Cataloging and indexing and lifecycle management of Government information resources topics are also found here.
Examples:
Cataloging Government Serial Publications using RDA 
Getting to Know MetaLib: GPO’s Federated Searching Tool
And MORE!

GPO’s Federal Digital System (FDsys) Webinars
Learn to navigate FDsys through introductory and advanced sessions, discover shortcuts and tips for searching, and delve into specific FDsys collections.
Examples:
Public Papers of the Presidents
Congressional Hearings in FDsys Tutorial
And MORE!

Search federal government publications  OR Browse government publications
Keep abreast of webinars and tutorials