UPDATE 3-Deals of the day -- mergers and acquisitions

** GlaxoSmithKline (GSK.L) stepped up its drive to acquire more biotech assets by buying the rights to an Austrian biotech company's experimental therapeutic vaccines against Alzheimer's disease. [ID:nLN643362]

** Interactive entertainment company Bright Things Plc BGT.L said it signed a relationship agreement for its social network site SocialGo with widget maker WidgetLaboratory LLC, sending shares up nearly 67 percent [ID:nBNG125396]

** Greek lenders Piraeus Bank (BOPr.AT) and Proton Bank (PRBr.AT) said their boards had agreed to cancel a share swap agreement, after Proton said it would seek to take part in a government bank rescue plan. [ID:nATH001521]

** U.S.-Swedish bourse operator Nasdaq OMX (NDAQ.O) has won final approval to buy Nordic power exchange Nord Pool's international business, Nord Pool said. [ID:nLM240609]

** AIM-listed media company Coolabi Plc COOL.L said it conditionally agreed to acquire Licensing by Design Ltd (LBD) for 400,000 pounds ($652,800) in cash, sending Coolabi shares up nearly 13 percent. [ID:nBNG389585]

** Ukraine's Prominvestbank, which some Ukrainian officials have said could be nationalised, said it hoped to find a buyer in the next few days. [ID:nLN643344]

** The Dutch government has no intention of selling the Dutch banking operation of Fortis FOR.AS and will proceed with its planned integration with ABN AMRO, a Finance Ministry spokesman said. [ID:nLN27432]

** Spanish vending machines group Azkoyen AZK.MC. said it expects to control 50 percent of German technology group Primion (P4TG.DE) by Friday after announcing a full bid for the company in September. [ID:nMDT005703]

** Italian regional utility Hera SpA (HRA.MI) is still open to tie-up talks with a merged Iride SpA IRD.MI and Enia SpA EN.MI, Hera Chairman Tomaso Tommasi di Vignano said. [ID:nLN531869]

** French food group Danone (DANO.PA) is set to sell its Frucor fruit juice unit by the end of the month and will garner almost 600 million euros ($771 million) from the sale, a source close to the talks told Reuters. [ID:nWEA3732]

** British publishing group Pearson Plc (PSON.L) said it was raising its stake in South Africa's Maskew Miller Longman (MML) to 85 percent from 50 percent, forming a new educational publishing unit in the region. [ID:nLN194915]

** Mining group BHP Billiton (BLT.L)(BHP.AX) said the current economic turmoil may throw up takeover opportunities, but only small deals would be considered, its CEO said. [ID:nLN565977]

** Jupitermedia Corp JUPM.O said it will sell its online images business to Getty Images Inc for $96 million in cash, leaving it to focus exclusively on its online media division. [ID:nBNG120476] (Compiled by Tina Kwan in Singapore; Shrutika Verma and Anurag Kotoky in Bangalore)