I have done alot of volunteer work with a certain NGO in Croatia and Bosnia
and Kosovo.  But I had to pay my own way.  Loved the work but not the
pay.  I have searched the web to try and find an NGO that is currently
working in the Bulkan area that pays. I have a wide variety of work experience
including returning refugees back to thier home's help set a a rec
center for kids and a variety of logistic jobs.  I currently work with
kids as After School Care Dir.  (willing to pay more for answer wasn't
real sure how to price this one)

Dear Bobritt, 

There are several sites that list vacancies in the NGO and humanitarian sector. 

Reliefweb <http://www.reliefweb.int/vacancies/> lists currently: 
- 3 vacancies in Croatia (all for Hulla & Co. Human Dynamics KG)
- 4 vacancies in Serbia and Montenegro (for various organisations: UN,
EU, Mercy Corps)
- 5 vacancies in what the advertisers called "Yugoslavia"

AlertNet <http://www.alertnet.org/thepeople/jobs/> lists currently: 
- 4 vacancies in Albania
<http://www.alertnet.org/thepeople/jobs/index.htm?fb_membercodes=&fb_countrycodes=152485&gofilter=GO>
- 4 in Bosnia <http://www.alertnet.org/thepeople/jobs/index.htm?fb_membercodes=&fb_countrycodes=152632&gofilter=GO>
- 4 vacancies in Croatia
<http://www.alertnet.org/thepeople/jobs/index.htm?fb_membercodes=&fb_countrycodes=214396&gofilter=GO>
- 3 in Serbia/Montenegro
- 3 in Slovenia <http://www.alertnet.org/thepeople/jobs/index.htm?fb_membercodes=&fb_countrycodes=220132&gofilter=GO>

Idealist <http://www.idealist.org/ip/idealist/Home/default?SID=51c17725165a7675853519eecc09c5e9>
lists currently only one vacancy in the region, but is a good source
for job-seekers.

DevNet <http://www.devnetjobs.org/> lists several vacancies in their site. 

Dev Zone <http://www.dev-zone.org/jobs/> also list few jobs 

If you're American, two organisations may have jobs for you: 
The Foreign Policy Association
<http://www.fpa.org/jobs_contact2423/jobs_contact.htm>
The Peace Corps <http://www.peacecorps.gov/> (they also have
employees, not only volunteers).

InterAction <http://www.interaction.org/jobs/> lists jobs, but is fee-based. 

International Aid Workers' Network
<http://www.expats-network.com/welcome.htm> also has job ads.

A good collection of links to work places exists in ELDIS:
http://www.eldis.org/news/jobs.htm

And even a better one, annotated, is in Aid Workers.net: 
http://www.aidworkers.net/personal/jobsites.htm 

A listing of Human Rights -related jobs is at the Human Rights
Internet: <http://www.hri.ca/jobboard/joblinks.shtml>

Naturally, you could also contact the organisations themseleves: 
UNESCO <http://portal.unesco.org/en/ev.php@URL_ID=11707&URL_DO=DO_TOPIC&URL_SECTION=201.html>

UNHCR <http://www.unhcr.ch/cgi-bin/texis/vtx/home?page=admin&id=3ba1bdcb7> 

Intl. Red Cross <http://www.icrc.org/Web/eng/siteeng0.nsf/html/jobs?OpenDocument> 

Care <http://www.careusa.org/careers/index.asp> 

UNDP <http://www.undp.org/mainundp/jobs/index.html> 

Oxfam <http://www.oxfamamerica.org/about/art1552.html> 

IRC (International Rescue Committee)
<http://www.theirc.org/index.cfm?section=jobs>

Amazon.com lists several books: 
http://www.amazon.com/exec/obidos/tg/sim-explorer/explore-items/-/084422295X/0/ref=pd_sexpl_d_b/104-2150807-1268712

I hope this helped. In order to find these sites I mainly used my
experience and knowledge (sorry...), and less the search engine,
although this search term certainly helps:
Humanitarian jobs 

I wish you lots of success in finding a job, and it warms my heart to
know that there are still people like you out there! If you need
further clarifications on this answer, please contact me before you
tip/rate it.