Today I've stumbled upon a super lightweight domain search tool called Domango.

Domango automatically searches multiple TLDs for you, and is as straightforward as Google when it comes to usage:

So far this is pretty basic, you get to see if the domain is available, and you're able to register it on Namecheap (which is one of my favorite domain registrars anyways).
The real interesting stuff happen when you stumble upon a domain that's already taken:
First of all, you can immediately see the domain's Pagerank & Value (in USD I think, would be good to have a currency sign there).
You also get a direct "Make Offer" & "Whois" links.
The "Whois" opens up as a Modal window, which is nice to have.

I must admit, the website is perfect for a quick domain lookup without distractions (lately most domain searching tools are too full of extra services), here's my list of suggested improvements:

• Reduce the "Loading" time, this might be limited by the API, but this is crucial - the website is already very lightweight, but the loading is too long at times.
• Format the Value, I'd like to see something like "$1,000" instead of 1000.87
• Whois is good, but it'll be better if we could parse it into something easier to read (bold fields, maybe partial detail showing with an extra button of "Show More")
• I'd switch the Online column with Available - because I'm searching for domains, a positive for me would be if the domain is available, not if it's taken.
• Pagerank is nice, would be good if there was a bit more info about the domain (like Alexa ranking?).
• There are a lot of empty values in case only 1 domain is taken (no Pagerank for empty domains), it might be a good idea to split the taken domains and the available domains into 2 tables, to avoid too many empty cells.

All in all, a great little idea, would definitely like to see it as a Chrome Extension or something similar.