Revamped Celtics.com/shop to Include Limited Edition Auction Items and Interactive Locker Room Shopping Experiences

SAN FRANCISCO/BOSTON, October 31, 2008 – As the new NBA season kicks off, Delivery Agent
and the 2008 NBA Champion Boston Celtics today announced a multi-year extension of their
ecommerce partnership. The renewal comes on the heels of record sales over the past year at
Celtics.com/shop, the official team online store powered by Delivery Agent, which has quickly become
the top-selling site among all NBA franchises.

Sparked by the 2008 championship run, sales on the official Celtics store website increased 1,170%
over the prior year. One of the featured items, Kevin Garnett’s adidas Team Signature Commander
NBA Finals shoes, sold out in less than 36 hours at $1,017 per pair with proceeds going to various
NBA Cares initiatives, including the Boston Celtics Shamrock Foundation (BCSF). The official Celtics
store website also boasted over 12,000 items sold in the 24-hour period following the title-clinching
Game 6 win, a 7,435% increase over the website’s 24-hour average.

In celebration of the new season, Celtics.com/shop is currently hosting an auction, which kicked off
opening night on Tuesday, October 28, featuring limited-edition autographed Kevin Garnett Opening
Night adidas shoes and will run until Tuesday, November 4th at 12:00 pm. PST. Only 17 pairs of these
shoes are available as a nod to the 17 championships the Celtics have won over the years. Proceeds
from the auction will benefit the Boston Celtics Shamrock Foundation.

As part of the extended partnership, Delivery Agent’s marketing services division, Agent.c, will be
deploying its Shopisode™ technology for the ecommerce site. This patented interactive tool allows
viewers to shop for items while watching online, behind-the-scenes footage of the Celtics locker room
integrated with products such as new Celtics apparel, 2008 NBA Champions collection, items from the
Sport Authentics vintage collection, new women’s merchandise, and the exclusive authentic Celtics
2008 NBA Championship replica banner. The Shopisode™ features the Celtics mascot, Lucky the
Leprechaun, and members of the Celtics Dance Team.

“The Celtics have always boasted an incredibly passionate fan following, and that fervor just
skyrocketed during the playoffs and their championship win,” Delivery Agent CEO Mike Fitzsimmons
said . “We’re thrilled by the response on Celtics.com/shop and the opportunity to extend our
relationship with the Boston Celtics another three years.”

“True to their name, Delivery Agent delivered in terms of online store presence and activation as we
made our way to our 17th championship last season,” Senior Director of Corporate Partnerships &
Business Development Ted Dalton said. “With their proven experience in the sports ecommerce
industry along with their leadership position in shopping-enabled entertainment, we felt Delivery Agent
was the obvious choice as our continued online partner.”

About Delivery Agent, Inc.

Delivery Agent, Inc. (www.deliveryagent.com) is the leader in shopping-enabled programming and
content monetization for more than 125 entertainment properties from major media companies such
as ABC, CBS, NBC Universal, Twentieth Century Fox, MTV Networks, Martha Stewart Living
Omnimedia, Boston Celtics, UFC, and The Weinstein Company. Delivery Agent created the market for
shopping-enabled programming by redefining how products related to entertainment are cataloged,
merchandised and sold online. Since its inception in 2001, Delivery Agent has deployed its
comprehensive technology platform, including e-commerce applications, video and mobile products,
and interactive advertising solutions to create profitable connections among entertainment content,
consumers and brands. To date, the company has developed a network of more than 90 distinct
branded shopping sites for its partners and its own SeenON!™ (www.SeenON.com), the definitive
online shopping destination for products seen on screen.

About the Boston Celtics

A charter member of the Basketball Association of America (which evolved into the National
Basketball Association) since 1946, the Boston Celtics have won a record 17 NBA Championships,
including eight (8) in a row from 1959-1966, and have won NBA titles in four different eras. In
addition, 31 former Celtics players, management or staff have been inducted into the Naismith
Memorial Basketball Hall of Fame. In December 2002 the team returned to local ownership for the first
time since 1963. For more information on the Celtics, log on to www.celtics.com.

About the NBA

The NBA reaches fans and consumers worldwide through the licensing and marketing of consumer
products bearing the league’s trademarks and player attributes. Over 200 licensees manufacture, sell
and market NBA branded products that are promoted worldwide and sold in more than 100,000
retail locations, in 100 countries on six continents. Major categories include video games, apparel,
footwear, sporting goods and trading cards. Twenty-five percent of merchandise sales are generated
from outside the United States. NBA merchandise is sold at over 50,000 retail locations in China.
Over one million fans visit the NBA Store each year and the 2006-07 season marked the Store’s best
sales year ever. In addition to offering merchandise for all 30 NBA teams, 14 WNBA team and 14
NBA Development League teams, the Store features multimedia attractions, a fully operational
broadcast booth and an official half-court used for special events, and regularly-scheduled
appearances by NBA and WNBA players, legends and celebrities. NBAStore.com re-launched in
November 2007 with the most comprehensive online assortment of NBA, WNBA and NBA
Development League merchandise. The site is visited by over 20 million people each year and there is
an online store in Europe.