Kango, a semantic search engine for travel, announced that it raised $4 million from Shasta Ventures earlier this year. The terms previously were not disclosed. Kango looks at travel reviews and other information across the Web and automatically generates tags so it can categorize results by how “kid friendly” or “romantic” they may be. I wrote about Kango earlier here.

Today, Kango is also opening up its beta, and accepting more sign-ups on its home page.