Ports, searching
From FreeBSDwiki
I know what I want but I don't know what it's called
Fear not: the ports tree is searchable for relevant stuff without having to resort to find, grep or going through each section in the most mind-numbing way possible.
First, go into /usr/ports as root and make the search index (do all of this after updating your ports tree)
dave@samizdata% su - password: samizdata# cd /usr/ports samizdata# make index
then
samizdata# make search key=browser | more
which will search for any ports that have anything to do with the key word "browser" or
samizdata# make search name=lynx | more
which will search for any packages by the name you supply.