Offending Websites have no immediate ability to send someone an e-mail message or ask a question. This space is free. Stale Studies show that visitors rarely visit a non-changing site more than 3 times. Fresh sites are simply more successful. A good rule of thumb is that publishers and big companies should update their sites at least weekly.
Smaller companies can sometimes go a month without updates.
Even better, have a daily message, fact, quote or and info nugget to keep people coming back until your site becomes a regular stop for them. Also try to stay in contact with your visitors like sending them a like a daily, weekly, or monthly newsletter. Many Websites don't give the visitor a reason to return. The visitor must make a mental note to return at a future time to see what's new. If you're selling something, statistically visitors do not buy on the first visit .