E.g. If you like the name Rachel, you may also like Rebecca, Helen, Sarah, etc. If you like the name Oliver you may also like George, Thomas, Daniel, etc.

All the name lists I've seen just list alphabetically or by 'traditional', 'modern', etc.

(I'm not actually PG yet, just forward thinking!! )

if there is, I would love to see it too!

Oh thats a good idea
<lurk>

Clearly nobody has come across one then?

Maybe I should write one!! <potential money making scheme!>

Yes there is - it's called the Baby Name Wizard by Laura Wattenberg. She also has a website although the website doesn't do the "name families" thing that she does in the book. Only downside is that it's American and therefore some of her descriptions and analysis doesn't translate, but in general it's the best baby name book I've come across.

Also, found www.babynamesworld.com if you then click on the similar names tab it gives a list of other names that you may like

theres a book called cool names for babies that has that sort of idea - grouping names together

www.thinkbabynames.com does this too.

And there is www.namenerds.com which might give you some ideas.

Browse by category at the Cradle is good - clicky

www.nymbler.com . You type in up to 6 names and it supplies an almost endless list of other similar names that you may like

http://www.desimuslim.co.uk/

you may find a list of good ones here

Just tried nymbler and it suggested "Darren".

I don't think so!

www.pampers.co.uk/en_GB/babynamemixer.do

you put in the names you like up to 5 and then rate how much you like them it then gives you the names that are similiar.

Nymbler is done by the Baby Name Wizard woman so has the disadvantages that dramasequalzero mentions (hence Darren).