Hi Henny, you are smart looking for some information Before you get goats!
They live on the average 15 years, are you at a place in your life you can take on that commitment?
Do you have acreage? With brambles and brush? Goats are browsers, preferring things to eat that are knee to sky high. If you have lawn type acreage you'd be better off looking at sheep, they graze low stuff.
Goats DON'T DON'T DON'T eat anything and everything. They will TRY most things but are choosy about what they will eat, same as other animals. One of my goats loves fruit loops, the other won't touch them for a simple example.
Most of the landscaping plants in your yard will sicken or kill goats. Rhodies in particular...one leaf! So don't plan on feeding them yard clippings, although they do love rose clippings, big thorns and all.
They need worm and parasite shots kept up to date. They need their feet trimmed. It is doable if you start on them as babies, it takes 10 big men if you get an adult who isn't used to being held/handled.
Rams stink of musk which lady goats love and you won't.
If I remember my farm childhood correctly, if you continue to milk a goat or cow every day they will continue to produce milk, but you'd need to buy a milker to start with if milk was what you are going for. You will always be tied to home with milking chores...It is very painful for a producing milker to not be milked regularly and it doesn't take long for them to quit producing.
Go to a health food store and buy some goat milk and cheese, see if you even like it.
We have withers, or neutered males. They always smell good and they love to be brushed with curry combs, and rub themselves up and down the steel street sweeper brush we got for them. They make berries not giant cow pies, and you can fall down in berries and not get dirty...much
Goats HATE rain, but don't mind ice/snow. If it is freezing you need to take them hot water several times a day. Icy water will make for pink snow rather than yellow. Their urinary track is fairly delicate.
They Hate soiled water, plan on cleaning water buckets and running fresh water daily.
The farm stores have great magazines on goats, and beginners books.
Hope some of this has helped.
edited to add: we used regular field fencing with posts at 8'. Goats love to climb fences, they just like to be tall and stretch their necks...they really broke them down. So when we built our second paddock we used horse fencing and posts at 6'. Billion times better although they still sort of climb it because with cloven hoves they can get a bit of purchase even with just 2" grid spacing.
but gotta learn at some point right? 
