If not too troublesome, create a webpage and maintain an up-to-date record for everyone to browse; sending out updating email to everyone periodically (e.g. biweekly or monthly) so that everyone will have the impression that you are the person in charge of those stuff.
Keep good relationship with your colleagues/coworkers so that they will respect you more. Then they will skip you less and less.
If it works, don't forget to update you boss, so that he knows you are doing well in this.
Just my 2 cents.