If you are interested in networking with fellow developers, in your particular field, meetup.com is a good start.
Some Web Events or “meetups” around Dublin this month include:
DublinJS
Monthly DublinJS meetup
Tuesday, May 7, 2013
6:30 PM to 8:30 PM
http://www.meetup.com/DublinJS/events/112479812/
MMUG – Dublin
Introduction to Kinetic.js – a HTML5 Canvas Framework
Tuesday, May 7, 2013
From 7:30 PM
http://www.meetup.com/augdublin/events/116288682/
Python Ireland
Building web applications with Flask
Wednesday, May 8, 2013
6:15 PM to 8:00 PM
http://www.meetup.com/pythonireland/events/115399142/
Dublin Groovy User Group
Grails Study Group
Thursday, May 9, 2013
From 7:00 PM
http://www.meetup.com/Dublin-Groovy-User-Group/events/110346572/
Scratch Day Ireland
Aimed at kids, but all welcome. Helping Kids to program their own interactive stories, games, and animations
(CoderDojo members will be interested in this one)
Saturday, May 18, 2013
From 11:00 am
http://day.scratch.mit.edu/event/740
Ruby Ireland
Drive a common sign-up flow across native web, iOS and Android clients
Tuesday, May 21, 2013
From 6:30 PM
http://www.meetup.com/rubyireland/events/116839122/
Drupal Camp
Learn about Drupal, and how to use it from a mix of people from Ireland’s top Drupal experts
Friday, May 24th – 25th, 2013
http://drupalcampireland.org/content/conference
Node.js Dublin
This month’s Node.js meetup, speakers including; Dominykas Blyžė, Daniel McKay and Isaac Schlueter
Thursday, May 30th, 2013
From 6:30 PM
https://tito.io/nodejsdublin-1/node-js-dublin-30th-may-2013
Meetup in particular is a great site. Why not join some groups and get involved?