BUZZ — UK's Dianomi surges after Taboola.com unit agrees to buy co in £19 mln deal
* Shares of digital advertising services firm Dianomi surge 64.5% to 62.5 pence * US-based advertising technology firm Taboola.com's Europe unit agrees to buy Dianomi in a deal valuing the company at about £19 million ($25.39 million) upfront * Offer includes 64 pence per share in cash plus a contingent consideration w