The ETF industry came flying out of the gates in January with more than two dozen new product launches and several more new product filings. Although the pace slowed a bit in February, the ETF universe continues to expand at an impressive rate, keeping 2010 on track to be the most active in the history [...] Related Stories: November ETF Roundup: Launches, Filings, and Closures October ETF Roundup: Launches, Filings, and Closures September 2009 ETF Roundup: Launches, Filings, and Closures