I thought "What does he mean?... grumble... grumble..." And then I looked and found it. Don't know why I didn't see it before. Thanks. Mark

The information that I want is the large table of Stock related information. I tried looking at links in the .html source, and the one that I suspect provides the content gave an "invalid" reply from a database. Perusing the scripts (which I do not know how to read) it appears the script and the database may exchange some password-like information before allowing the query. Still looking for a way to capture the text that the Web browser has already obtained, without doing a manual copy and paste to a text file. Mark

In C# you can't mark reference types as readonly. However you can Encapsulate ArrayList inside a class and provide restricted access to it through methods, properties. You mentioned that speed is an issue otherwise you could have simply returned a clone to it.