Cathrina: How do I find out how many backlinks my site has?

backlinkfinder.com

Google may best option for getting real result

Umm why is everyone being so Lazy? If you want shoddy results, then use a free service - In terms of getting a grip on where you stand, you want to be precise so you don't waste time and don't get deindexed on accident. Go to Alexa.com and pay for the SEO lookup, its not that expensive, less than $20 bucks in fact, and you will get the entire break down of your sites back link structure.
That backlinkfinder.com you guys are recommending does not even accurately transcribe my DMOZ status for any of my sites, nor the Pagerank correctly, those are huge factors when building your plans for building sites... So i would highly recommend finding your info at Alexa.com (You can use their free look up if you dont have $$) But don't take it from me... I only have 11 years experience with SEO and own the 7th largest private email services provider on the net

I use a few different sites but the best I have found is WooRank.com which provides a full quality SEO report of your website which includes backlinks.

I use http://www.majesticseo.com

These are some of the most useful backlink checking tools that I use for SEO purpose.--
Google Webmaster Tools
Bing Webmaster Tools
Open Site Explorer
Majestic SEO
Backlink Watch
IWeb Tool Backlink Checker

Scrapebox works great. Plus you can see what backlinks your competitor has.