Here is a collection of links that were very useful to my collecting:
The Imperial GunneryTHE site to check if your weapons are vintage or reproductions
The Armory of the Jawa'sA site to check if your weapons are vintage or reproductions
The Star Wars Collectors ArchiveA nice database on everything that's Star Wars!
The Rebel Scum Photo ArchiveA nice database of foto's about collectables
Hollandse MarktenCheck here for yard sales, etc. in the Netherlands
A Collectors Guide to BaggiesA site about Star Wars baggie figures
Old School ToysA Dutch site for Star Wars (and other) collectables
The Bounty Hunters #TBHnlA Dutch site for Star Wars (and other) collectables and collector supplies
Galaxy ShopA Dutch site for Star Wars (and other) collectables