FOSDEM does not recommend any particular hotel or hostel. However, here is a list of popular accommodations for FOSDEM visitors to get you started. You can also check the wiki and the mailing list for more information. wikitravel also lists some places to stay. There is a large selection of hotels that can be booked online at booking.com - along with the comments of previous hotel guests!

Bed & Breakfast

Bed & Brussels Main Office : Rue Kindermans, 9 1050 Bruxelles Tel.+32.2.6460737 Fax +32.2.6440114 http://www.bnb-brussels.be In short: They provide you with B&B accommodation and cultural service/information. Online booking.

Hotels

CHAB: Centre Van Gogh Rue Traversiere, 8 1210 Bruxelles Tel: +32.2.2170158 Fax: +32.2.2197995 info@chab.be http://www.chab.be In short: Old hotel, but very good rooms in the second part (in front). Direct connection to FOSDEM by tramway. Near Turkish area, so animated.	Novotel Tour Noire Novotel Brussels Centre Tour Noire Rue de la Vierge Noire 32 1000 Bruxelles Tel: +32.2.5055050 Fax: +32.2.5055000 http://www.accorhotels.com/... In short: This hotel is located right in the center of Brussels on the site of the Tour Noire.
Novotel Grand Place Novotel Brussels Grand Place Rue du Marché Aux Herbes 120 1000 Bruxelles Tel: +3225143333 Fax: +3225117723 http://www.accorhotels.com/...

Youth Hostels

Bruegel Youth Hostel Heilig Geeststraat, 2 1000 Brussel Tel: +32.2.5110436 Fax: +32.2.5120711 brussel@vjh.be http://www.jeugdherbergen.be/brusselE.htm In short: Hotel renewed, modern, a bit dark. Animated area Direct connection by bus, not far from historical center.	Sleep Well Youth Hostel Rue du Damier, 23 1000 Bruxelles Tel: +32.2.2185050 Fax: +32.2.2181313 info@sleepwell.be http://www.sleepwell.be In short: Modern hotel, with lots of people. Good position for metro/bus.
Youth Hostel Génération Europe Rue de l'Elephant, 4 1080 Brussels Tel: +32.2.4103858 Fax: +32.2.4103905 http://www.laj.be/html/en/hostels/europe/aubergeseurope_en01.htm In short: A recently renovated hostel, about 35 min. from FOSDEM by bus or tram.	Youth Hostel Jacques Brel Rue de la Sablonniere, 30 1000 Bruxelles Tel: +32.2.2180187 Fax: +32.2.2172005 brussels.brel@laj.be http://www.laj.be/html/en/hostels/brel/aubergesbrel_en01.htm In short: Nice central youth hostel, next to Metro Madou.
2GO4 Quality Hostel Avenue Emile Jacqmain, 99 1000 Bruxelles Tel: +32.2.2193019 Fax: +32.2.2193009 info@2go4.be http://www.2go4.be In short: Nice, new youth hostel, located in the heart of Brussels.