Trying your tool. While I can type in, edit the layout, etc, I'm not seeing the results displaying on the screen. Why?

You should allow dotted/dashed/bold relationships with special quotes or other symbols (i.e. +/- etc.)

I'm having problem with diagrams in Portuguese. Accents are not displaying properly.

slant lines instead of horizontal lines for timing diagrams (timing diagrams are already supported)

"a b" (one space) seems like the super-common-case, so why not make it more intuitive by having that be what produces the relationship without a label? (it currently takes "a b" [ two spaces ] to create a label-less relationship).

If you extend to system to allow keywords native to UML it would greatly increase to things you can model.

If you extend to system to allow keywords native to UML it would greatly increase to things you can model.

Since there is no programmatic access to diagrammr via API, I would propose an HTTP based way to add statements. EX:
http://www.diagrammr.com/edit?key=dSthdEQ148P&sbj=subject&rel=relation&obj=object

An HTTP connection to diagramm.com will respond with a new diagram

Such as: John throws the ball to Mary.

1. eliminate articles such as the, a and an
2. create a node out of the verb: throwAction
3. throwAction hasAgent John
4. throwAction hasObject ball
5. throwAction hasRecipient Mary

There are standard names for these. I think hasRecipient is actually called hasPatent for some reason.

It would be nice to be able to find a non-private diagram via web searches

After using diagrammr for a while, and creating a dozen diagrams, I discovered the possibility to login and have a collection of my diagrams. Now I would like to import the diagrams from the URL where they are.

Would be nice to get items ordered in a circle. In my diagrammr not all items can be seen, even though I changed the size.

My bad - I added an item with too many quotes and now I can't delete that item. I could delete the whole diagramm and create a new one without the offending item.

You should be able to represent a bidirectional relationship without drawing two lines. (Draw an arrow with two points)

a->b<->c->d