Question about google adwords?

[Prince of Indya - Jai Hind, Vande Mataram]

I used google adwords many years ago. Now that have logged back in, I see the whole format has changed. Last time I used it there was a very smart research tool which allowed you to choose keywords. You entered a keyword and google told you a) how many people used that keyword as a search tool and b) how popular it was amongst merchants - i.e. how many sellers already had that keyword listed. I can't seem to find this tool now. Can anyone suggest?

[Jake]

Good timing they are about to stop offering the keyword tool to the general public, one most have an Adwords account to access it.

https://adwords.google.com/select/KeywordToolExternal

Proably not the right access point for an account holder, but a start.