Run a web based online business?
You know those website Terms of Service? The ones that say “We can change these terms any time, by giving notice… even if you never see that notice?
Well, it's not true anymore.
Recently, courts have been requiring evidence of actual, or at least constructive notice before enforcing these modification.
In one case, an emailed notification was not, because the website operator couldn't prove that the recipient had actually seen the notice and read it.
So, what does this mean for online business owners?
Well, if you're changing the terms of service on your website, merely posting them won't do the job. You must make sure the users actually read (and consent to) the changes. Best practice is probably to require a click-through upon login, before allowing continued use of the site.