*** THE FAMILY TREE ***
I have done the best I can, in terms of relatives. Sorry for errors. Still a rough, guideline! WILL do a nicer one once confirmations come in!!!
I've divided it into sections - Arwen the Webmaster and each of her sisters (Herenya, Erulisse, Synariel, and Elanor - please note that we've claimed Arwen and Aragorn for our parents) and their families.
This was easier to put together on the screen, and upload and so on.
Rumil is Arwen's sister. Rumil?
Kitoky's kids - please confirm offspring/partners and etc. I KNOW Theni is also Arsa's adopted daughter. Is Arsa still married to valar? Ala made some comment about them 'getting a divorce'...

(Thanks Nie for 'confirming' where you and Rad stand, and Theni for clearing stuff up!)
** PLEASE everyone confirm spelling, relations, order of siblings and so on, and then I will draw up a proper tree. 'kay?

Unless someone with more skill with a graphics program wants to do it?
Sorry again for errors.
Top of the tree sits ARAGORN and ARWEN.
ARWEN(the webmaster)'S LINE:
Aerwen is married to Harry Potter
Elvawen is Theni's daughter.
Arwen is married to Laurie (-from-Little-Women-before-he-went-to-college)
Maeth is married to Obi-Wan Kenobi
HERENYA'S LINE:
Herenya is married to
Lady Nienna is Mel's daughter
Elegost is married to Gwenneth
Galasriniel is married to ... Frodo? Or Elijah Wood?
Oro is married to Jake Gyllenhaal
evenstarofmirkwod is married to Peter Pevensie (you have your grandmother's blessing...

)
SYNARIEL'S LINE:
Elenriel Greenleaf is Eldarwen daughter, and is married to Legolas.
Hattie is Zandaïn's mother.
Blueeyedgirl4god has claimed Mr Darcy, and is Findemaxerulisse and xo.Manwathiel.ox's mother
Hermione is Lirwen Tirithon's mother
Mirelenas is married to Robert Goren, and has adopted FrostLord
Frost Lord is married to Natalie Portman
Shieldmaiden is married to Kasey Kahne
ERULISSE'S LINE:
Pearl Evenstar, IdrilFalastari and Lady Isteleth are Erulisse's daughters.
Erulisse is married to Eomer.
Beriadanwen is married to Dominic Monaghan and is Erulisse's daughter
Lhunardaien is married to Orlando Bloom, and is SarahniraLivién's mother
ELANOR's LINE:
married to Remus Lupin

she doesn't have any offsrping yet...