There are a lot of great activities happening in the startup world (including the ReadWriteWeb Real-Time Web Summit on June 11), and we would like to help you make sure you’re on top of these opportunities.

We’re starting a calendar on ReadWriteStart that will include both events and application deadlines (for competitions and incubators, for example).

Below you will find a few of the dates that have caught our attention this week:

SemTech Start-Up Competition

Semantic Universe is seeking to identify and recognize promising start-ups in the SemTech field. In partnership with Semantic Universe is hosting its 2010 SemTech Start-Up Competition. Winners will receive an overall prize package totaling over $12,000. Applications due June 6.

Women 2.0 Labs

Women 2.0 is sponsoring Women 2.0 Labs, a new 5-week program (July 6 – August 5, 2010) for engineers, developers, biz dev folks, and marketing mavens to develop high-growth technology ventures in San Francisco, CA. Applications due June 20.

Meetups Everywhere

Several entrepreneurial-related events were announced this week via the new Meetup Everywhere platform. Fred Wilson announced ongoing AVC meetups. And in conjunction with This Week in Startups, you might just find a Startup Meetup near you on June 8.

Do you have something to add? You can leave a comment or contact us with the information and we’ll include you in our new calendar of startup events and deadlines. As with the ReadWriteWeb Events Guide, we’ll include ways for you to easily import or download the information into your own calendar tools.

audrey watters