Unsubscribe, founded by the James Siminoff behind PhoneTag/Simulscribe has just raised an impressive $2.1 million in Series A financing – the round was led by Charles River Ventures. The start-up, which offers a quick and easy unsubscribe button next to e-mails in Outlook and G-mail had undoubtedly gained a hefty amount of momentum ever since its launch and the investors seem to think the same.

“If you want to unsubscribe from an email or marketing list, all you need to do is click the button, and Unsubscribe takes care of the rest. In order to use the service, you first need to download an extension for your email client…or you can forward emails to mail@unsubscribe.com”

As our editor Kristen Nicole had predicated as early as last year, there is a very promising growth and emerging boom in the 3rd party privacy protection services sector, and the investors had definitely noticed this phenomenon.   SV Angel, First Round Capital, DFJ Frontier, Tim Ferriss, Matt Brezina and more all invested in Unsubscribe, which means that in addition to the great $20/year for unlimited e-mail elimination deal it offers the demand is growing, and this start-up is very likely to reach the top as the trend progresses.

In addition to Unsubscribe’s spam and mailing list solution, 3^rd party privacy protection is also spreading among the bigger names in the industry, including Google. As covered here, there is now a Chrome extension which eliminates Facebook Connect from every site visited by a given user. This step, following a very long list of ad blockers, pop-up screeners and various other filters is only the latest one with the boom of Facebook and e-mail marketing tactics.