Falconer Debbie Stewart, who once ran the programme with only help from volunteers, says the website is now easier to navigate with lots of updated information about the birds they work with and staff.
There are five staff working there now.
"It's a very informative website and so much easier to navigate around,'' she says.
The birds, which have captured the imagination of people for generations, are slowly increasing in numbers because of the sanctuary.
In the past 20 years, staff have rescued and released around 600 birds and bred and released about 1000 more at the centre.
In fact, two which are unable to be released are now 18 years old.
Meanwhile, they are educating people about the birds through the website to ensure the survival of more of the birds.
Animated owl ambassadors take the viewer to pages where they are fed information on different aspects of raptor life.
Zoe the morepork takes children through raptor activities.
Charlotte the falcon has lots of energy and takes the reader on a fun ride into the world of "Karearea'' New Zealand
falcon.
Children are also given ideas on how to feed the birds in the wild.
There is even a quiz for the children to do and as part of their 20 anniversary celebrations, staff are hosting a colouring competition on the kid's page. Entries must be sent in by September 30.
There is a section on Maori and birds of prey as well.
Navigating the website, visitors can find out about the heritage of the birds dating back 4000 years, Debbie says.
The birds, traditionally used to hunt food, are still used today in some countries for hunting, she says.
"Raptor have captured our imagination for generations ... they represent strength. Many organisations use them in logos.''
Staff also treat birds which have lost or damaged tail or wing feathers, replacing them with dead bird's feathers which are glued on to them.
University students are taught in the special room which Debbie calls their "museum''.
The work also features on the website.
"It's all about education,'' she says.
Meanwhile, staff will be celebrating their 20th anniversary this weekend with a special dinner and auction being at Skyline Rotorua.
The auction kicks off their next phase _ fundraising to purchase a permanent home in Rotorua.
The centre is currently on rented land on Paradise Valley Rd. Every day at 1.30pm, people can go out and watch them flying and feeding birds.
During Conservation Week in September visitors are being offered a discounted two-for-one deal.
For more information or to check out the new revamped informative website go to www.wingspan.co.nz