Customizing org-mode exports

Question

So, I have been using org-mode for taking my research notes for some time now. I love how I can seamlessly export to both latex (for my papers) and html (for my blog). However,

Answer 1

I figured out how to do it myself. Note that this is perhaps not the most elegant solution since it does not place the latex part in the beginning of the latex file (i.e. outside \begin{document}), but it works well enough for me.

(setq org-export-blocks
  (cons '(latexmacro org-export-blocks-latexmacro) org-export-blocks))

(defun org-export-blocks-latexmacro (body &rest headers)
  (message "exporting latex macros")
  (cond
   ((eq org-export-current-backend 'html) (concat "\\(" body "\\)"))
   ((eq org-export-current-backend 'latex) body)
   (t nil))
)