In earlier servers we had a list of warp links for people to use to travel directly to people's constructions (and a noticeboard in game giving them), though not everyone playing wanted their warps listed.
In a non-city situation having signposts to things is much more difficult because things are far more spread out and not as easy to give directions to - not everyone wants roads leading around to their place - it basically relies on people talking to each other in game and showing people around.
We plan to reinstate the ftb maproom with linkbooks to all the city plots and people's outer city places too.
On Frontier you can use the tectonicus map to have a look around to find things you might want to visit - Tectonicus Map
-- anyone wanting to be among the first to have their place in the spotlight - send me a PM with some details or catch me in game.