• Downtown Silver Spring events
• IMPACT Silver Spring
• Montgomery County Gazette & community calendar
• Silver Spring Historical Society
• Silver Spring Penguin – downtown SS online publication
• Silver Spring regional services center
• Silver Spring Town Center online community
• Silver Spring Voice & community calendar
• Yahoo! Local page for Silver Spring
• Yelp reviews for Silver Spring

Have I forgotten a great Silver Spring resource? My bad! Please add the URL in the comments, gracias!