Exhibit 10.8

PROMISSORY NOTE

CDN$500,000.00

FOR VALUE RECEIVED, the undersigned hereby promises to pay to or to the order of  BLACKSWAN INVENTIONS INC. (the “Vendor”), a company incorporated pursuant to the federal laws of Canada, having an address of Unit 203, 1428 West 6^th Avenue, Vancouver, British Columbia, V6H 4H4, the sum of Canadian FIVE HUNDRED THOUSAND DOLLARS (CDN$500,000.00), payable, without interest, as follows:

a)

FIFTY THOUSAND DOLLARS ($50,000.00) on September 30, 2011;

b)

TWO HUNDRED THOUSAND DOLLARS ($200,000.00) on October 31, 2011; and

c)

TWO HUNDRED FIFTY THOUSAND DOLLARS ($250,000.00) on November 30, 2011,

provided any portion which remains unpaid will be accelerated and will become immediately due and payable on the occurrence of either of the following events:

(a)

the completion by Digagogo Ventures Corp. (“Digagogo”) of a stock financing of no less than FIVE MILLION DOLLARS ($5,000,000.00), with the date of completion deemed to be the date that the funds from the stock financing are released to Digagogo without restrictions; or

(b)

the receipt by either Digagogo or the undersigned of a non-refundable and fully released license fee of no less than ONE MILLION FIVE HUNDRED THOUSAND DOLLARS ($1,500,000.00) pursuant to a license agreement to license the assets of the Vendor, whether in whole or in part or alone or together with other intellectual property.

DATED as of the July 6, 2011.