Dear Faldage: I am completely ignorant about endo- and exo- isomerism. Here's a bunch
of sites:
1.REACTIONS IN SUPERCRITICAL CARBON DIOXIDE - ... Alder reactions. It is well known
that many Diels-Alder reactions result in formation of variable mixtures of endo- and exo-isomers.
...
http://www.chem.leeds.ac.uk/People/CMR/da.html search within this site

2.exo/endo-7-NORCARANOL - ... 7. The exo/endo ratio is 6:1; the exo and endo isomers
show characteristic triplets in their nmr spectra at d 2.9 and 3.1 ppm, respectively. ...
http://www.orgsyn.org/orgsyn/orgsyn/prepContent.asp?prep=CV5P0859 search within this site

3.E033: Troubles With Isomers Of (Isodicp)Ticl<Sub>3</Sub> - ... The two isomers of
(isodiCp)TiCl 3 have similar unit cells in the orthorhombic crystal system: endo with a = 9.134(1),
b = 12.328(1), c = 10.314(1) Å, and exo ...
http://www.hwi.buffalo.edu/ACA/ACA97/abstracts/text/E033.html search within this site

4.electronic poster - ... as shown in Scheme 3. Thus condensation of the endo- anhydride with ...
Interestingly, attempts to extend this chemistry to the exo-isomers of compounds (10) and ...
http://www.ch.kcl.ac.uk/kclchem/staff/mno/poster.htm search within this site

5.Chapter 2 Stereochemical Principles Isomers (PDF) - 1 1 Chapter 2 Stereochemical
Principles Problems: 1 (4 pts), 2 (4 pts), 5 (2 pts), 6 (6 pts), 10 (7 pts), 16 (4 pts), 18 (3 pts) 2
Isomers * Same formula ...
http://www.cns.uni.edu/~macmilla/carroll/Carroll02.pdf search within this site