VOLUNTEER: To sign up to help in the effort this weekend, visit the community center at the Mall at Millenia (entrance between Brio and the Cheesecake Factory) Thursday or Friday during normal mall hours.

ORLANDO, Fla. -- A group called Child Watch announced Wednesday it will help look for 24-year-old Jennifer Kesse, who's been missing for nine days. Family members asked the community to join in on another search this weekend.

Meanwhile, detectives looked through an expanded area Wednesday, bordered by Texas Avenue, Orange Blossom Trail, Holden Avenue and Oak Ridge Road.

The Kesse family is hoping to inject a new energy into the search for Jennifer. Hundreds of volunteers will take part in the biggest effort yet to find her this weekend.

In the meantime, though, police began Wednesday what they are calling a new grid search, based on tips that have been coming in. Sheriff's deputies with the mounted patrol jumped off their horses and over a fence Wednesday along Texas Avenue off of John Young Parkway after a citizen called in a tip.

With turkey vultures circling a pond, deputies wanted to be sure they weren't missing anything. It was all part of the new grid search that's using about 15 mounted patrol officers between the Orlando Police Department and the sheriff's office combined, searching further out north and south from where Jennifer’s car was found along Texas and Americana last Thursday.

The search team even scoured woods next to the pond after picking up a strange stench. It turned out to be old garbage. They said covering new ground, on foot at times and especially on horseback, opens them up to more information.

"A lot of people come out when they see the horses and talk to us. So, we're hoping, they may give us new info or maybe they witnessed something,” said

"Nothing is too tiny. Give a call to the hotline. You can be anonymous,” Jennifer’s father, Drew, said.

Jennifer's mother and father, in their biggest appeal to the public yet, know how critical every bit of information could be to finding their daughter. That's why they've secured the help of Child Watch, a national missing persons organization based in Orlando, to better coordinate their efforts and greatly increase the number of volunteers combing for clues.

Child Watch founder Don Wood said his group will spend the next two days signing up what is hoped to be hundreds of volunteers at the Mall at Millenia.

Those who want to sign up to help in the Child Watch effort this weekend should visit the community center at the Mall at Millenia (entrance between Brio and the Cheesecake Factory). Most who sign up will distribute flyers, but some will actually head into the woods and search.