• Alembic workbench a natural language engineering environment for the development of tagged corpora
• ATLAS Architecture and Tools for Linguistic Analysis Systems
• CLaRK system an XML Based System For Corpora Development
• GATE is an architecture, framework and development environment for language engineering which can be also used to annotate texts.
• MMAX a tool for multi-modal annotation in XML, but the new version is no longer free

More about linguistic annotation can be found here.

If you have a program which performs a task similar to PALinkA and you would like to add it to this page please contact me.