Archipelago Learning Inc., a Dallas-based provider of online education tools and services, has filed for a $75 million IPO. It plans to trade on the Nasdaq under ticker symbol ‘ARCL’, with Bank of America Merrill Lynch serving as sole underwriter. Providence Equity Partners acquired a majority stake in Archipelago Learning in January 2007, for $84.5 million.

The Blackstone Group and Lion Capital have confirmed that they are in talks to sell Orangina Schweppes Group to Japan’s Suntory Holdings. Blackstone and Lion Capital paid around $2.6 billion to acquire the beverage maker in 2006.

Bridgepoint Education (NYSE: BPI), a San Diego-based provider of online and campus universities, has canceled a proposed secondary public offering of 11 million common shares, citing “current market conditions.” Sellers would have included Warburg Pincus, which currently holds around 34.5 million common shares (64.9 percent ownership stake), and members of company management. BoA Merrill Lynch and JPMorgan were serving as co-lead underwriters. Bridgepoint Education went public earlier this year, raising $141.75 million in an IPO at $10.50 per share.

CA Inc. (Nasdaq: CA) has paid $200 million in cash to acquire NetQoS Inc., an Austin, Texas-based provider of enterprise network performance analysis products and services. NetQoS had been a portfolio company of Liberty Partners.

Cobalt International Energy LP, a Houston, Texas-based oil and gas exploration and production company that focuses on the Deepwater Gulf of Mexico, has filed for a $1.15 billion IPO. It plans to trade on the NYSE under ticker symbol CIE, with Credit Suisse, Goldman Sachs and JP Morgan serving as co-lead underwriters. The company raised $350 million from First Reserve Corp. in late 2007, which followed earlier commitments from Goldman Sachs, Carlyle/Riverstone, KERN Partners and company management.

Dollarama Inc., a Montreal-based discount retailer, has filed to raise more than C$250 million via an IPO in Canada. Bain Capital holds an 80 percent ownership stake in the company. Lead underwriters include RBC Dominion Securities, CIBC World Markets and Credit Suisse Securities (Canada).

General Atlantic has sold around 15.6 million shares in U.K. outsourcer Xchanging PLC (LSE: XCH). The move cuts General Atlantic’s ownership stake in the company to approximately 9.99 percent.

GI Partners has sold a Frankfurt-based data center to a subsidiary of Equinix Inc. (Nasdaq: EQIX) for $28 million. GI had acquired 25 technology buildings as part of its debut fund portfolio, for approximately $280 million. It has now exited all of them, with more than $1 billion in cash proceeds (21 of them were rolled into a REIT called Digital Realty Trust).

IncentOne, a Lyndhurst, N.J.-based provider of incentive solutions in the health care and green energy spaces, has sold its performance and loyalty business to Augeo Incent, a subsidiary of Augeo Affinity Marketing. No financial terms were disclosed. IncentOne last year raised an undisclosed amount of equity funding from Camden Partners.

Investor AB and Priveq Investment have selected a group of second-round bidders for their planned sale of jointly-owned drug company Swedish Orphan. The deal is expected to net upwards of €350 million.

KAR Holdings Inc., a Carmel, Ind.-based operator of used vehicle auctions, has filed for a $400 million IPO. It plans to trade on the NYSE, with Goldman Sachs serving as lead underwriter. The company reported that net revenue fell 5.3 percent to $881.6 million in the first half of 2009, while net income from continuing operations more than tripled to $9.3 million. Shareholders include Kelso & Co., Goldman Sachs and Parthenon Capital.

Myer, an Australian department store chain owned by TPG, is planning to raise up to $2.6 billion via an IPO in Australia before year-end.

Natus Medical Inc. (Nasdaq: BABY) has agreed to acquire Alpine Biomed Holdings Corp., a Fountain Valley, Calif.-based maker of devices for the diagnosis of neurological disorders. No financial terms were disclosed. Alpine Biomed is majority-owned by Water Street Healthcare Partners.

Open Link Financial Inc., a Uniondale, N.Y.-based provider of cross-asset trading, risk management and portfolio management software, has withdrawn registration for a $200 million IPO. The company had originally filed back in May 2008, with Credit Suisse and Citi serving as co-lead underwriters. In its withdrawal, Open Link cited “unfavorable market conditions for initial price offerings.” TA Associates acquired majority control of the company in February 2006, via a recapitalization.

Permira has reportedly been approached by Yantai Wanhua Polyurethane Co., a China-based company that’s interested in acquiring a stake in BorsodChem, the Hungarian chemicals company bought by Permira in 2006

Rue21, a Warrendale, Penn.-based youth clothing retailer, has filed to raise $125 million via an IPO of common stock. BoA Merrill Lynch, Goldman Sachs and JPMorgan are serving as co-lead underwriters. The company plans to use some of the proceeds to pay down debt, which totaled $29.2 million as of August 1. Apax Partners holds a 63.4 percent ownership stake, while BNP Paribas holds a 23.6 percent stake.

Select Medical Corp., a Mechanicsburg, Penn.-based operator of specialty hospitals, has set its IPO terms to 33.33 million common shares being offered at between $11 and $13 per share. It would have an initial market cap of approximately $1.94 billion, were it to price at the top end of its range. Welsh Carson Anderson & Stowe holds a 65.8 percent pre-IPO stake, while and Thoma Cressey Bravo holds a 10 percent stake.

Sithe Global Power LLC, a platform acquisition company owned by The Blackstone Group and Reservoir Capital, has sold a 50 percent interest in its Goreway Station, an 875 megawatt combined cycle power generating facility in Brampton, Ontario. The buyers were wholly-owned subsidiaries of Chubu Electric Power Company and Toyota Tsusho Corp. No financial terms were disclosed.

Tivit, a Brazilian technology consultant, has filed to raise up to $430 million in an IPO on the Sao Paulo exchange. Patria Investimentos holds a 12.4 percent stake in the company.