April 18, 2008 - Vancouver, British Columbia: Riverside Resources Inc. (TSX-V: RRI) is pleased to announce that it has signed a Letter of Intent with Arcus Development Group (TSX-V: ADG) whereby Arcus can earn a 51% interest in Riverside's Ventosa Project by paying Riverside $150,000, issuing to Riverside 200,000 Arcus common shares, and incurring $2,000,000 in exploration expense on the property, over the next three years. Earlier this year, Riverside Resources identified, staked and laid claim to the Ventosa Property located in southeastern Oaxaca, Mexico, based on favorable geology and its own proprietary database of Mexican geology with more than 44,000 mineral occurrences.

"We are very please to form this partnership with Arcus Development Group as the management team is known in the exploration industry for their experience and commitment," said John-Mark Staude, President and Chief Executive Officer, Riverside Resources. "As a prospect generator, our overall business strategy is to identify early stage exploration projects and then advance the properties through our own technical experience and through quality partnerships like the one we have with the Arcus Group. The Ventosa Project is a prime example of the execution our business plan and it is a testament to the effort and work ethic of the team at Riverside Resources."

Under the terms of the agreement, Arcus has made a firm commitment to pay Riverside $25,000 in cash, issue 50,000 shares of Arcus, and spend $250,000 on the property in the first year. Arcus retains the option, by paying Riverside $50,000, issuing 50,000 of Arcus shares, and spending $750,000 on the property in the second year, and by paying Riverside $50,000, issuing 50,000 Arcus shares and spending $1,000,000 on the property in the third year.
After exercising of the Initial Option, Arcus can earn an additional 14% interest by incurring a further $2,000,000 in exploration expenditures over two years and paying $300,000 in cash, or at the option of Riverside the equivalent, in Arcus common shares to Riverside.

Riverside operates with a generative exploration business model using experienced local prospectors, explorers and geologists to identify and acquire high quality mineral opportunities. Riverside looks for the most cost effective ways to build share value. To date, Riverside has announced four property acquisitions in Mexico and one acquisition in the United States which are summarized at www.rivres.com, and continues building a diverse mineral property portfolio.

Certain statements in this press release may be considered forward-looking information, which statements can be identified by the use of forward looking terminology (e.g., "expect" or "plans"). Such information involves known and unknown risks - including the availability of funds, the results of financing and exploration activities, the interpretation of exploration results and other geological data, or unanticipated costs and expenses and other risks identified by Riverside in its public securities filings - that may cause actual events to differ materially from current expectations. Readers are cautioned not to place undue reliance on these forward-looking statements, which speak only as of the date of this press release. Riverside disclaims any intention or obligation to update or revise any forward-looking statements, whether as a result of new information, future events or otherwise.

For additional information contact:

Warwick Smith,
Corporate Communications
Riverside Resources Inc.
This email address is being protected from spambots. You need JavaScript enabled to view it.
Phone: (778) 327-6671
Fax: (778) 327-6675
Web: www.rivres.com

John-Mark Staude,
President & CEO
Riverside Resources Inc.
This email address is being protected from spambots. You need JavaScript enabled to view it.
Phone: (778) 327-6671
Fax: (778) 327-6675
Web: www.rivres.com

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