There are many online sites that you can use for dating online. Here is a good website that you may want to use to start with: www.marriedsecrets.com/
I have found a number of dating sites that are geared to married people, but I have had difficulty finding sites that are specifically for Polygamy. One that may be of interest to you is polyamorousdating dot com.
Since vampires aren't real, there couldn't be any "real vampire" dating sites.
I am not sure there are any men only dating sites. IF you mean gay/lesbian dating sites, all major dating websites have this option for you to choose on them.
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i being a preteen myself have not found any good preteen or teen dating sites. i have seen millionaires dating sites i have seen senior dating sites but none that cover this category. you have to be 18 and up sorry folks
There are reputable online adult personal dating sites. These dating sites include match.com and eharmony.com. You can find the dating site reviews on www.100bestdatingsites.com/.
I would suggest that you go to http://www.serolynne.com/poly_meet.htm and on the front page of that, you will see five online polyamorous sites. You should read the description about those sites before clicking.
No, just for teens.
In addition to the major internet dating sites such as eharmony.com or match.com, there are also sites out there such as militarycupid.com or usmilitarysingles.com. Any of these sites would help a soldier find someone.
There are singles of all ages on dating sites. You can enter the age range that you prefer on any of the dating sites. Dating sites are a great way to only meet people who share the same interests that you do.
i am not aware of any newer dating sites either. i know of the common ones which are always on tv like www.match.com or www.christianmingle.com; but no new ones.
You could try sites such as www.asiandating.com or www.asiafuns.com/ but keep in mind that larger sites, such as eHarmony and match.com also have sections for Asian dating.