All those Tweets are really paying off for Twitter. The microblogging service said on Friday that it got some more funding. Despite the company’s lack of business model, word around the Net is that investors including Benchmark Capital and Institutional Venture Partners put $35 million into Twitter, which had already raised $20 million.

According to MediaPost, Twitter co-founder Biz Stone expects that this new infusion will help his company get to the point where it’s actually making money from the service. Does that mean an actual business model? What a concept.