Alignment Techniques:
COMA(++) - still arohnd, university of leipzig
OLA
Anchor-Prompt
S-Match
Cupid
QOM
RiMOM
CtxMatch
DOLCE
GLUE
Prompt
ONION

Visualization Techniques:
Optima- thic.cs.uga.edu/thiclabwiki/index.php/automated_alightment_of_ontologies
AgreementMaker - agreementmaker.org
COGZ - defunct?
PROMPT - protege plugin, defunct as 2005
AlViz - source available, seems defunct as of 2008