For as long as we've had websites and electronic addresses for writers, it's been a truism that most agents won't clink on a link, won't go to a website, won't do anything but read queries to find new work.
That's still 85% true (I made up the number but what ever it is, it's less than the 99.5% it was two years ago.)
What changed? Twitter and Facebook arrived.
Here's what that means to you:
I follow 224 people on Twitter. I see everything those 224 write in general; everything they write to me (@janet_reid); and everything they write to people I follow (those 224 folks again).
But, I can also see, if I want, people who write to me or about me by clicking on the "Mentions" tab. And I see a couple tweets a day from people I don't know, and often it links to their blog, or their site, or something that ...ta daaa... I click on.
So, yes, you're more likely to see a shark swimming in your backyard pool now than you were two years ago.
Here's why knowing this is important. You want to BE READY.
(I've yammered about Being Ready before--this is the electronic equivalent)
If you have pages of your novel posted on your website, you should also have what could be thought of as an introduction, an overview. It might be your query. It might just be a paragraph that gives me the time period of a historical novel. It's a brief statement that you use to answer the question: What is your book about?
I've gone to hundreds of websites in the last year and looked at 20-25 books posted there. Almost no one has an intro. It's like standing in a forest. I can see the trees, but I don't know where I am or which direction to go.
Think of the overview as giving me a map.
I know I know, one more thing. But, if it gets your work read, if it makes serendipity and luck work in your favor, you'll do it. Won't you?