San Diego-based StockTwits, the online, stock-focused micro messaging startup, said Friday that it has integrated its service with social charting service Chartly. Stocktwits said the deal allows users to search, view, and share charts and videos within its service. As part of the integration, Chartly's site now redirects to the StockTwits site. Chartly, originally a developer of publicly accessible stock charting tools, had been acquired by StockTwits in 2009. StockTwits is led by Howard Lindzon.