Pier Carlo found it so I decided to check if it's useful. Probably upcoming.org it's just somebody's dream to become an important Events registry? However, let's try and see if this could work for MilanIN.
I've registered our next Social Networking Event, the next “Monday Evening with MilanIN Member”, this time with Luca Zambrelli. Here is the event on the upcoming.org: http://upcoming.org/event/128791/
Here are some comments from an experienced user of the upcoming.org service. Probably it could be useful for somebody else.
Right, we're Open-Minded people, like the platform we develop is an Open-Source project, so I also never make secrets from the hints I receive from the other people participating in creation of the success of MilanIN.
"Hi Andrey,
I saw your event on Upcoming.org. You might have more success if you set up groups and tags to get more attendees. For example below is a link to a new event we attended here last week
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