One of the biggest advancements for web technology for small and medium businesses, associations, and startups in the last five years has been the maturing of Open Source software. There are thousands of Open Source projects and platforms out there, but only a few dozen have the worldwide support and participation to rival -- or in many cases, exceed -- the level of commercial products and platforms.
Open Source is free for anyone to use for any purpose. There are no licensing or purchase costs, so you save significant money at the start. You only pay for the labor hours to setup and customize your Open Source software, and those costs can be sized to fit your budget, priorities, business plan, and available resources. Grow things by adding on and doing further customizations as you need them and as they fit your budget and goals.
Thanks to Open Source, you can now leverage millions of dollars worth of mature and sophisticated software to maximize project ROI and deploy new systems quickly and efficiently. It's a real competitive edge.
CMS: Drupal is the Chosen Techology for Many
Here are some good examples of organizations that use Drupal as their web platform technology in order to support their needs for robustness, security, management, community interaction and multimedia web presentation to large audiences.
Harvard's OpenScholar system is a packaged, pre-configured Drupal install
Whitehouse.gov chose Drupal for its security and scalability
The Economist magazine
The Onion, a popular and often funny satire site
Fast Company magazine
NBC Universal and this video explains why
National Library of Australia, including the Treasure Explorer site
Warner Brothers Records music and entertainment
Popular Science magazine
Miami.com travel and events
Fox Searchlight Pictures movies and entertainment
MTV UK music and entertainment
Guitar World instruments and sales
...and many others.
And many non-profit and social organizations use Drupal customized by Civic Actions resource and consulting group.
Over a million web sites use Drupal for personal blogs, small company business sites, professional continuing education and digital classrooms and more. You can browse Drupal Showcase to see more web sites that have been built with Drupal. You can also view the top 500+ Drupal sites ranked by Alexia nicely at TopDrops.org.