Even the smallest of nonprofit groups can design effective and engaging Web sites.

But many groups omit basic features that prevent them from making the most of their home pages.

Kivi Leroux Miller, a nonprofit marketing consultant, recently conducted an unscientific but instructive survey of about 30 nonprofit groups during a seminar she was hosting on nonprofit Web sites.

And the results suggest many nonprofit groups are wasting opportunities because they have failed to include some basic features on their home pages.

Among Ms. Miller’s findings:

“It’s a lot to absorb, but the good news is that all of these problems are very fixable,” Ms. Miller writes.

What features are must-haves on nonprofit Web sites? What are some examples of small nonprofit groups that have effective and useful sites? Click on the comments link below this post to share your thoughts.