Many buyers complete their relevant search activity well in advance of
purchase
Although many marketers evaluate the success of search marketing programs
based only on clicks that lead to a purchase in the same session or perhaps
within a few days, most buyers complete their purchase-related search engine
research two or more weeks before they make a purchase online."

Methodology
Using its proprietary panel of 1.rbauction .

searches bid

8 % bought during the same session. In total, the sales drew almost 10,000
registered bidders and led to US$65 million in total sales.

The Ritchie Bros. auction calendar currently has 32 upcoming
auctions scheduled in five countries.

Ritchie Bros.

searches zip

It also found that most
searchers complete their purchase-related search activity weeks in advance of
the purchase transaction. Both searches
and clicks include all relevant search activity of the buyers and is not
limited to activity related to the 30 merchants in the four categories.
DoubleClick is the leading provider of solutions for advertising agencies,
marketers and web publishers to plan, execute and analyze their marketing
programs.

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The
survey tracked search activity -- both searches and clicks -- of the buyers
for 12 weeks preceding the purchase ( September, 2004).

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(Nasdaq: DCLK), the leading provider of marketing solutions for ad agencies,
marketers and web publishers, today unveiled a new study, Search Before the
Purchase, in conjunction with comScore and DoubleClick's search marketing
division, Performics , to demonstrate how consumers use search engines in the
process of making purchases online.
"Marketers should track search click-throughs for weeks prior to the purchase
session to fully account for the longitudinal impact of generic keywords in
search.S.
DoubleClick Inc.

Scott Forke, Vice -President, Central Region, said the fact that
such a successful sale took place during CONEXPO-CON /AGG - North
America's largest industrial equipment trade show - indicates a high
level of interest in unreserved auctions and the used industrial
equipment market in general.

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7% of buyers' final searches occurred at least two
weeks before the purchase event; 21. "Over 70 percent of the trucks and equipment were purchased by
buyers from outside Colorado, so clearly, these are the best market
conditions we've seen in a long time. is the world's largest auctioneer of industrial
equipment, operating through over 110 locations in more than 25
countries around the world.

searches bargain

This study shows that the generic terms that dominate related
searches also lead to purchases and may provide an opportunity for marketers
to influence consumers.

finds searches

7
relevant searches; computer hardware buyers, 4. For example, in
the travel category, 64. Auctioneers Incorporated (TSX:RBA)(NYSE:RBA)

Over 2,400 bidders from 14 countries and 46 US states registered
to participate in the Ritchie Bros. Online buyers
accounted for US$4.

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5% of all searches those buyers
conducted, depending on the respective purchase categories . Merchants were selected for a high volume of
traffic and a homogenous set of products for sale . The Company sells, through unreserved
public auctions, a broad range of used and unused industrial
equipment including equipment utilized in the construction,
transportation, material handling , mining, forestry, petroleum,
marine, real estate, and agricultural industries.

ebay auctions

Branded terms dominate search activity closer to the purchase
While the majority of search activity across the full twelve weeks is
generic, brand searches and clicks become more prominent close to the
purchase , peaking in "same session" search activity (searches and clicks
conducted in the same session as the purchase). For example, in the case of
apparel buyers, 10% of all clicks occurred in the same session as the
purchase, and 89% of these clicks included a merchant's brand (brand only or
brand + item).5 million U.8 million of sales, or 22 percent.

searching ebay

5 relevant
searches in the 12 weeks preceding a purchase; apparel buyers made 4.5183
jconnorton@doubleclick.

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The population of the
survey included people ("buyers") who made a purchase at a target site.381.

amazon finds

In addition, the company's marketing
analytics tools help clients measure performance within and across channels.

Ritchie Bros. Auctioneers Completes Record US$22 Million Denver Auction

Bidders vied for 1,737 pieces of industrial equipment and trucks
on March 17th and 18th, generating a total of over US$22 million in
auction sales.

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7% of clicks. has global headquarters in New York City and maintains 22
offices around the world.com

About Ritchie Bros.

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Brand-specific
searches accounted for only 18.

"Despite holding our auction during the same week as
CONEXPO-CON/AGG, we wound up having a record crowd and sale," he
said.

zip searching

DoubleClick's marketing solutions -- online advertising, search
engine marketing , affiliate marketing, email marketing, database marketing,
data management and marketing resource management -- help clients yield the
highest return on their marketing dollar.
212. online bidding service,
rbauctionBid-Live, which allows users to participate in the Company's
unreserved auctions from anywhere in the world.

engines auction

Further, the
study showed that a small minority of all the searches (4% or less for each
category) were for "Brand + Item Searches"; that is, compound phrases that
included a merchant's brands plus another term. Generic keywords provide greater reach for marketers and contribute
to the overall lift in a search program.

News Editors

VANCOUVER , British Columbia----March 22,
2005--Ritchie Bros.

notification ebay

9, and travel buyers averaged 6
relevant searches in the 12 weeks before their transaction.1% to 28. However, buyers converting from a
branded search can mask the value of the prior generic searches in direct ROI
analyses.

About DoubleClick Inc.

auctioneers allows

In the case of the
travel segment, nearly three out of four travel buyers consulted search
engines before making a purchase.
"The findings of this milestone study suggest to marketers that there is
an opportunity to attract and engage searchers throughout the buying cycle,
and not only with their own branded keywords," said Stuart Larkins, Vice
President -- Partner Services, Performics , a division of DoubleClick.

CONTACT:
Jenny Connorton
DoubleClick Inc.net

rbauction.

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DoubleClick 'Search Before the Purchase' Report Finds That One Out of Two Online Purchases Is Preceded by a Relevant Search

The number of searches prior to purchase
varies by category -- buyers on fitness/sports sites conducted 2. Buyers in other categories followed similar though less extreme
patterns: 9% and 54% for computer hardware, respectively, 9% and 49% for
travel and 11% and 57% for sport + fitness. Denver, Colorado auction last
week, making it historically the highest-grossing Company sale in the
state.

The Denver auction was part of a busy week for the Company, which
held a total of eight sales spanning three countries between March
14th and March 19th.com

Investors and potential investors should note that this
information may not be indicative of the overall financial
performance of the Company for this or any period.

item auctions

The study, which analyzes pre-purchase search activity across four
categories (Apparel, Computer Hardware, Sports + Fitness and Travel), showed
that roughly half of all online shoppers conducted related research at a
search engine before making an online purchase. Auctioneers Incorporated (TSX:RBA ) (NYSE:RBA)

ubid tenders

Internet users, comScore
Networks identified people who made a purchase at one of 30 web sites in four
vertical industries (Travel, Apparel, Computer Hardware or Sports/Fitness ) in
the month of September, 2004. Forke noted that a major contributor to the auction's success
was the participation of 600 online bidders, who registered and bid
remotely using the Ritchie Bros.

Search engines, directories, or listings of both online auction sites and locations for actual auctions .

notification finds

6 % searched one week or more before
purchase, and only 23. The Company
maintains a web site at www.

allows actual

While it is widely accepted that searches that lead
directly to a purchase are often brand -related search queries, the study shows
that brand names of online retailers were in the minority of all the purchase-
related searches made during their shopping research.

Key findings and takeaways of the study included:

Buyers conduct many related searches prior to a purchase
Overall, the study found that approximately one out of every two online
purchases is preceded by research on a search engine.

The majority of pre-purchase search activity (both searches and clicks)
involves generic terms
Buyers clearly favor generic terms early in the buying cycle - for
example, "running shoes," as opposed to a merchant brand."

Mr.

auctioneer bid

-- Study Shows That Purchase-Related Searching Takes Place Long Before the
Transaction and Generic Search Terms Dominate Purchase Related Research --

NEW YORK, DoubleClick Inc. Though the volume of searches
on these Brand + Item terms is low, they do drive a comparatively high
proportion of clicks per search, relative to Brand and Generic searches: for
Apparel sites, only 1% of searches but 3. Full equipment listings and
auction details can be found at the Company's web site,
www.

Ritchie Bros.