Search Launchpad for PPAs matching software or package name?

You can search for PPAs matching software or package in the following link

https://launchpad.net/ubuntu/+ppas

Y PPA Manager is a standalone programme that can be used to search PPAs for a certain package. Once some PPAs are found, you can easily list the packages and see what other packages (and their versions) that PPA provides. It also allows for much more precise ("deep") searches than the Launchpad web interface.

You can install the package from the ppa:webupd8team/y-ppa-manager PPA.

ppasearch looks handy for command line environments.