Searching for rpm:

You can search for rpm by name by selecting to search in RPMS and entering in the search box the first letters of the rpm you are looking for.

To search for dependencies, select to search in Dependencies [ Provides ] or Dependencies [ Requires ].(You might want to restrict your search to one distribution in order to get better results).

Please note that dependencies are listed on each rpm page with links to rpms providing or requiring them.So it may be easier to search for a rpm, then to navigate through related rpms by using those links.

Additional information:

You can use the * wild card in the search box.

Source rpms are not listed by themselves, but download links pointing to them are available on the corresponding rpm page.

This is a "Work in progress", so comments or suggestions are, of course, :)