Are you running a Drupal website without SSL certificate? If you're not not into eCommerce, run a website with webshop, forums or anything that requires or offers login for users, then you're (mostly) fine. If however you have a website that offers or uses login services, you should think about minimum safety and security. Not the least for your users but of course, personal (admin)...
Social Business is the new trend, whether for smaller or larger companies. Social Business change the way people work, and how business is done. Imagine Facebook in a company or corporate context, solutions exist in plenty, open source and licensed.
Since the mid 1990s Collaboration services have evolved from nice to have, to need to have. Doing business on national or international level one should invest in functional, up to date collaborative services & as much culture.
Investing in broader, customer oriented services with simplicity and design to support mobile connectivity is vitally important. Those who can or will read signs may observe the break-down of all kinds of services to suit mobility.