This is a link-collection entry for quick access to Mount Saint Helens stuff.
Mount St. Helens VolcanoCam: already linked in the temporary image seen in the sidebar. It’s interesting to note that Johnston Ridge Observatory, which hosts the camera, has been evacuated.
US Geological Survey MSH site. USGS MSH Current Activity page. Northwest Interpretive Association.
Gifford Pinchot National Forest Special Conditions: A catchall for stuff happening in the GPNF, such as an imminent volcanic eruption. Come back in a year, and the info will be different.