» Rackspace Builds Further Momentum in Europe with 4000th Customer Win And Executive Appointments Web Host Talk: All about Internet Related Topics

London, UK, 10 March 2008 - Rackspace, (www.rackspace.co.uk) a leading
provider of hosted IT services, today announced Adknowledge, an online
behavioural targeting technology company, as its 4000th European
customer, highlighting its success in becoming one of the fastest
growing IT services company in the region.

Based on its robust infrastructure, scalable storage offering and
ability to deliver IT service solutions, Rackspace has been selected by
Adknowledge to aid it in the launch of two new products - TaglinesTM and
Cubics Social advertising. Taglines inserts behaviourally targeted logos
and text links to user generated emails, newsletters and news alerts,
turning what is essentially an existing cost base into a brand new
revenue stream for UGC publishers and ISP’s with large volumes of user
generated email. Cubics, the social advertising channel of Adknowledge
serves targeted ad inventory across hundreds of social media
applications, including Facebook, MySpace and Bebo platforms.

Rackspace today also announced two high-level appointments - Florian
Schiebl as European business director, and Tarquin Bellinger as sales
director, to reinforce its European operations. Prior to joining
Rackspace, Schiebl was managing director of iPass, being responsible for
the Central and Eastern European regions. He has also held positions at
Bertelsmann, Compaq, Siemens, COLT Telecom and MFN.

Bellinger has joined Rackspace to lead the Sales and Solutions
Engineering team. His previous position was at BT, where he led the
company’s 21st Century Network business development programme. Prior to
that, he led Cable & Wireless’ global services business division
focusing on financial markets, based in New York.

Doug Loewe, Managing Director, Rackspace EMEA, commented, “These are
very exciting times for us as reaching the 4000th customer is an
accolade we are very proud of. I feel confident that our belief in
delivering Fanatical Support(r) for our customers will continue to lead
to success. While it’s far easier to focus on technology, exceeding
customer expectation is the real challenge, which is why we are
absolutely committed to customer service. We are delighted to have
Adknowledge as one of our customers and look forward to a fruitful
relationship with them.”

John Cole, managing director, Adknowledge UK, adds: “We require instant
access to over 15 terabytes of behavioural targeting data in the USA and
so we knew that we would need a reliable data hosting provider in the UK
to help us grow our data set in Europe. Rackspace fit the specifications
of our brief and were well within budget, so we went live in December
2007. We have been very impressed by the service so far.”

- Ends -

About Adknowledge
Adknowledge is a single destination for advertisers looking for quality
clicks beyond Google(r) and Yahoo(r). Adknowledge operates
BidSystem.com, a multi-channel behavioural targeting ad network in which
advertisers seamlessly bid for traffic in display, email and smaller
search engines. Over 50,000 advertisers have used the Adknowledge
BidSystem. Additionally, publishers can display advertisements by
integrating the AdStation(tm) product line of solutions with their
website, email list, or search engine. For more information about
Adknowledge, please visit us at www.Adknowledge.com. To show Adknowledge
ads within your website or email newsletter, please visit
www.AdStation.com. To receive traffic for your website from the
Adknowledge marketplace, please visit www.BidSystem.com.

About Rackspace
A recognised leader in the global IT marketplace, Rackspace(r)
(www.rackspace.co.uk) delivers a diverse suite of enterprise-class
hosted IT services to businesses of all sizes. Customers choose
Rackspace for its hosting specialisation and expertise, backed by the
company’s award-winning Fanatical Support(r). By integrating the
industry’s best technologies and delivering them as services, Rackspace
serves as an extension of its customers’ IT departments. Because
Rackspace removes the burden of infrastructure maintenance and
management, customers can focus on their core business. Rackspace’s
portfolio of companies also includes the Mosso(r) (www.mosso.com) cloud
computing platform and Mailtrust(tm) (www.mailtrust.com), a provider of
business-class hosted email solutions.