Hey guys, I have been off the scene for a while and when I left the community a while back I saw some great new land mods coming into place.
What are the best mods for land expansions?

I would say Elsywer (spelling). New creatures, desert land, quests and models. The only thing is, shouldn't it have much more K'hajiit? Or maybe I'm thinking of the wrong mod.

http://tes.nexusmods.com/downloads/file.php?id=37120 - new land, tons of quests, excellent mod
http://tes.nexusmods.com/downloads/file.php?id=16976 - just recently updated
http://tes.nexusmods.com/downloads/file.php?id=37329 plus the http://tes.nexusmods.com/downloads/file.php?id=40269

There is also the Hammerfell mod and the Valenwood Improved mod.

http://www.gamesas.com/topic/1114870-relzwipz-hammerfell/

http://www.gamesas.com/topic/1162232-relz-valenwood-improved/

Two of my favorites which have not yet been listed:

http://tes.nexusmods.com/downloads/file.php?id=21989 An excellent piece of work which can provide many hours of play. Join one side of a cival war, then replay the mod on the other side. Sound familiar?

http://tes.nexusmods.com/downloads/file.php?id=41456 A brand new one which is still in developement. It is quite playable already and could potentially become one of the very best.

There's also Silgrad Tower. I don't have a link, but, there is a thread for it somewhere.

Right http://www.gamesas.com/topic/1247901-silgrad-tower-v30/.