Google ( NSDQ: GOOG ) has made its second iGoogle-related acquisition in less than a month, buying up small online travel site Ruba , which features photo-centric guides to various locations, all contributed by users. TechCrunch , which confirmed the acquisition with Google, says Ruba will now be integrated into iGoogle in some way. In late April, Google also bought up iGoogle widget developer LabPixies in order to “anchor the company’s iGoogle efforts across Europe, the Middle East and Africa.”