title: Object database for website
body: <p>I was planning to use db4o for a website. It's a microblog site with small posts and comments developed in Java.</p>
  
  <p>The thing is I contacted db4o support asking if db4o would be suitable for a website, and they answered me that only for websites with low concurrency. That means with few requests?   </p>
  
  <p>So, now I think db4o will not be a good choice.</p>
  
  <p>Do you know if there is any object database for Java suitable for a website?</p>