Earlier in July news came out that Twitter desktop app Tweetdeck raised “several million dollars” in new funding. From an SEC document just filed, the London-based company has raised about $1.5 million of a $1.8 million debt raise. This follows a $300K seed round in January led by New York tech investor and incubator Betaworks, also an investor in this round. Other investors in the new round included TAG Ventures, PRO Founders Capital, Ron Conway, and Danny Rimer of Index Ventures.