Consider getting involved in your local chapter of ARMA International and attending ARMA’s chapter meetings and conferences.  Depending on your focus, other organizations can be helpful in providing guidance on best practice in records and information management, such as Society for Human Resource Management (SHRM) and AIIM.
Access Sciences is a member of many professional organizations for records and information management.  We frequently speak at conferences and are involved in industry-specific groups and leadership roles.  This helps us stay connected to our clients and remain aware of changes in the industries we provide services to.