+1 for everything in the `options` hash. I tweeted @angellistAPI to ask what the options for `filter` are. @joshuaxls is usually really fast at responding.

In the meantime, I'd recommend we just code around it and maintain a consitent interface to all_startups, e.g.

```ruby
def all_startups(options={})
  options = { :filter => :fundraising }.merge(options)
  get("1/startups?filter=#{options[:filter]}", options)
end
```

disclaimer: I'm an ex-AngelList engineer